2019-01-15 18:09:33 test1 xxxx: [ee91a42aba914d5f9d0f7420] /w/api.php   ErrorException from line 69 of /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php: PHP Notice: Undefined property: stdClass::$sanetex
#0 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(69): MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(39): MathMathMLCli->initializeFromCliResponse(stdClass)
#2 /srv/mediawiki/w/extensions/Math/src/MathHooks.php(371): MathMathMLCli::batchEvaluate(array)
#3 /srv/mediawiki/w/includes/Hooks.php(174): MathHooks::onParserAfterTidy(Parser, string)
#4 /srv/mediawiki/w/includes/Hooks.php(202): Hooks::callHook(string, array, array, NULL)
#5 /srv/mediawiki/w/includes/parser/Parser.php(1477): Hooks::run(string, array)
#6 /srv/mediawiki/w/includes/parser/Parser.php(479): Parser->internalParseHalfParsed(string, boolean, boolean)
#7 /srv/mediawiki/w/includes/content/WikitextContent.php(341): Parser->parse(string, Title, ParserOptions, boolean, boolean, NULL)
#8 /srv/mediawiki/w/includes/content/AbstractContent.php(517): WikitextContent->fillParserOutput(Title, NULL, ParserOptions, boolean, ParserOutput)
#9 /srv/mediawiki/w/includes/Revision/RenderedRevision.php(239): AbstractContent->getParserOutput(Title, NULL, ParserOptions, boolean)
#10 /srv/mediawiki/w/includes/Revision/RenderedRevision.php(211): MediaWiki\Revision\RenderedRevision->getSlotParserOutputUncached(WikitextContent, boolean)
#11 /srv/mediawiki/w/includes/Revision/RevisionRenderer.php(175): MediaWiki\Revision\RenderedRevision->getSlotParserOutput(string)
#12 /srv/mediawiki/w/includes/Revision/RevisionRenderer.php(128): MediaWiki\Revision\RevisionRenderer->combineSlotOutput(MediaWiki\Revision\RenderedRevision, array)
#13 [internal function]: MediaWiki\Revision\RevisionRenderer->MediaWiki\Revision\{closure}(MediaWiki\Revision\RenderedRevision, array)
#14 /srv/mediawiki/w/includes/Revision/RenderedRevision.php(175): call_user_func(Closure, MediaWiki\Revision\RenderedRevision, array)
#15 /srv/mediawiki/w/includes/Storage/DerivedPageDataUpdater.php(1265): MediaWiki\Revision\RenderedRevision->getRevisionParserOutput()
#16 /srv/mediawiki/w/includes/Storage/DerivedPageDataUpdater.php(1235): MediaWiki\Storage\DerivedPageDataUpdater->getCanonicalParserOutput()
#17 /srv/mediawiki/w/includes/page/WikiPage.php(1994): MediaWiki\Storage\DerivedPageDataUpdater->getPreparedEdit()
#18 /srv/mediawiki/w/includes/api/ApiStashEdit.php(203): WikiPage->prepareContentForEdit(WikitextContent, NULL, User, string, boolean)
#19 /srv/mediawiki/w/includes/api/ApiStashEdit.php(146): ApiStashEdit::parseAndStash(WikiPage, WikitextContent, User, string)
#20 /srv/mediawiki/w/includes/api/ApiMain.php(1570): ApiStashEdit->execute()
#21 /srv/mediawiki/w/includes/api/ApiMain.php(531): ApiMain->executeAction()
#22 /srv/mediawiki/w/includes/api/ApiMain.php(502): ApiMain->executeActionWithErrorHandling()
#23 /srv/mediawiki/w/api.php(87): ApiMain->execute()
#24 {main}
[15-Jan-2019 18:09:33 UTC] PHP Notice:  Undefined property: stdClass::$sanetex in /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php on line 69
[15-Jan-2019 18:09:33 UTC] sanetex value  
[15-Jan-2019 18:09:33 UTC] mathoidStyle value vertical-align: -0.338ex; width:11.843ex; height:2.176ex; 
2019-01-15 18:09:33 test1 xxxx: [ee91a42aba914d5f9d0f7420] /w/api.php   ErrorException from line 71 of /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php: PHP Notice: Undefined property: stdClass::$png
#0 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(71): MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(39): MathMathMLCli->initializeFromCliResponse(stdClass)
#2 /srv/mediawiki/w/extensions/Math/src/MathHooks.php(371): MathMathMLCli::batchEvaluate(array)
#3 /srv/mediawiki/w/includes/Hooks.php(174): MathHooks::onParserAfterTidy(Parser, string)
#4 /srv/mediawiki/w/includes/Hooks.php(202): Hooks::callHook(string, array, array, NULL)
#5 /srv/mediawiki/w/includes/parser/Parser.php(1477): Hooks::run(string, array)
#6 /srv/mediawiki/w/includes/parser/Parser.php(479): Parser->internalParseHalfParsed(string, boolean, boolean)
#7 /srv/mediawiki/w/includes/content/WikitextContent.php(341): Parser->parse(string, Title, ParserOptions, boolean, boolean, NULL)
#8 /srv/mediawiki/w/includes/content/AbstractContent.php(517): WikitextContent->fillParserOutput(Title, NULL, ParserOptions, boolean, ParserOutput)
#9 /srv/mediawiki/w/includes/Revision/RenderedRevision.php(239): AbstractContent->getParserOutput(Title, NULL, ParserOptions, boolean)
#10 /srv/mediawiki/w/includes/Revision/RenderedRevision.php(211): MediaWiki\Revision\RenderedRevision->getSlotParserOutputUncached(WikitextContent, boolean)
#11 /srv/mediawiki/w/includes/Revision/RevisionRenderer.php(175): MediaWiki\Revision\RenderedRevision->getSlotParserOutput(string)
#12 /srv/mediawiki/w/includes/Revision/RevisionRenderer.php(128): MediaWiki\Revision\RevisionRenderer->combineSlotOutput(MediaWiki\Revision\RenderedRevision, array)
#13 [internal function]: MediaWiki\Revision\RevisionRenderer->MediaWiki\Revision\{closure}(MediaWiki\Revision\RenderedRevision, array)
#14 /srv/mediawiki/w/includes/Revision/RenderedRevision.php(175): call_user_func(Closure, MediaWiki\Revision\RenderedRevision, array)
#15 /srv/mediawiki/w/includes/Storage/DerivedPageDataUpdater.php(1265): MediaWiki\Revision\RenderedRevision->getRevisionParserOutput()
#16 /srv/mediawiki/w/includes/Storage/DerivedPageDataUpdater.php(1235): MediaWiki\Storage\DerivedPageDataUpdater->getCanonicalParserOutput()
#17 /srv/mediawiki/w/includes/page/WikiPage.php(1994): MediaWiki\Storage\DerivedPageDataUpdater->getPreparedEdit()
#18 /srv/mediawiki/w/includes/api/ApiStashEdit.php(203): WikiPage->prepareContentForEdit(WikitextContent, NULL, User, string, boolean)
#19 /srv/mediawiki/w/includes/api/ApiStashEdit.php(146): ApiStashEdit::parseAndStash(WikiPage, WikitextContent, User, string)
#20 /srv/mediawiki/w/includes/api/ApiMain.php(1570): ApiStashEdit->execute()
#21 /srv/mediawiki/w/includes/api/ApiMain.php(531): ApiMain->executeAction()
#22 /srv/mediawiki/w/includes/api/ApiMain.php(502): ApiMain->executeActionWithErrorHandling()
#23 /srv/mediawiki/w/api.php(87): ApiMain->execute()
#24 {main}
[15-Jan-2019 18:09:33 UTC] PHP Notice:  Undefined property: stdClass::$png in /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php on line 71
[15-Jan-2019 18:09:33 UTC] png value  
2019-01-15 18:09:33 test1 xxxx: [ee91a42aba914d5f9d0f7420] /w/api.php   ErrorException from line 72 of /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php: PHP Notice: Undefined property: stdClass::$png
#0 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(72): MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(39): MathMathMLCli->initializeFromCliResponse(stdClass)
#2 /srv/mediawiki/w/extensions/Math/src/MathHooks.php(371): MathMathMLCli::batchEvaluate(array)
#3 /srv/mediawiki/w/includes/Hooks.php(174): MathHooks::onParserAfterTidy(Parser, string)
#4 /srv/mediawiki/w/includes/Hooks.php(202): Hooks::callHook(string, array, array, NULL)
#5 /srv/mediawiki/w/includes/parser/Parser.php(1477): Hooks::run(string, array)
#6 /srv/mediawiki/w/includes/parser/Parser.php(479): Parser->internalParseHalfParsed(string, boolean, boolean)
#7 /srv/mediawiki/w/includes/content/WikitextContent.php(341): Parser->parse(string, Title, ParserOptions, boolean, boolean, NULL)
#8 /srv/mediawiki/w/includes/content/AbstractContent.php(517): WikitextContent->fillParserOutput(Title, NULL, ParserOptions, boolean, ParserOutput)
#9 /srv/mediawiki/w/includes/Revision/RenderedRevision.php(239): AbstractContent->getParserOutput(Title, NULL, ParserOptions, boolean)
#10 /srv/mediawiki/w/includes/Revision/RenderedRevision.php(211): MediaWiki\Revision\RenderedRevision->getSlotParserOutputUncached(WikitextContent, boolean)
#11 /srv/mediawiki/w/includes/Revision/RevisionRenderer.php(175): MediaWiki\Revision\RenderedRevision->getSlotParserOutput(string)
#12 /srv/mediawiki/w/includes/Revision/RevisionRenderer.php(128): MediaWiki\Revision\RevisionRenderer->combineSlotOutput(MediaWiki\Revision\RenderedRevision, array)
#13 [internal function]: MediaWiki\Revision\RevisionRenderer->MediaWiki\Revision\{closure}(MediaWiki\Revision\RenderedRevision, array)
#14 /srv/mediawiki/w/includes/Revision/RenderedRevision.php(175): call_user_func(Closure, MediaWiki\Revision\RenderedRevision, array)
#15 /srv/mediawiki/w/includes/Storage/DerivedPageDataUpdater.php(1265): MediaWiki\Revision\RenderedRevision->getRevisionParserOutput()
#16 /srv/mediawiki/w/includes/Storage/DerivedPageDataUpdater.php(1235): MediaWiki\Storage\DerivedPageDataUpdater->getCanonicalParserOutput()
#17 /srv/mediawiki/w/includes/page/WikiPage.php(1994): MediaWiki\Storage\DerivedPageDataUpdater->getPreparedEdit()
#18 /srv/mediawiki/w/includes/api/ApiStashEdit.php(203): WikiPage->prepareContentForEdit(WikitextContent, NULL, User, string, boolean)
#19 /srv/mediawiki/w/includes/api/ApiStashEdit.php(146): ApiStashEdit::parseAndStash(WikiPage, WikitextContent, User, string)
#20 /srv/mediawiki/w/includes/api/ApiMain.php(1570): ApiStashEdit->execute()
#21 /srv/mediawiki/w/includes/api/ApiMain.php(531): ApiMain->executeAction()
#22 /srv/mediawiki/w/includes/api/ApiMain.php(502): ApiMain->executeActionWithErrorHandling()
#23 /srv/mediawiki/w/api.php(87): ApiMain->execute()
#24 {main}
[15-Jan-2019 18:09:33 UTC] PHP Notice:  Undefined property: stdClass::$png in /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php on line 72
2019-01-15 18:09:33 test1 xxxx: [ee91a42aba914d5f9d0f7420] /w/api.php   ErrorException from line 72 of /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php: PHP Notice: Trying to get property 'data' of non-object
#0 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(72): MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(39): MathMathMLCli->initializeFromCliResponse(stdClass)
#2 /srv/mediawiki/w/extensions/Math/src/MathHooks.php(371): MathMathMLCli::batchEvaluate(array)
#3 /srv/mediawiki/w/includes/Hooks.php(174): MathHooks::onParserAfterTidy(Parser, string)
#4 /srv/mediawiki/w/includes/Hooks.php(202): Hooks::callHook(string, array, array, NULL)
#5 /srv/mediawiki/w/includes/parser/Parser.php(1477): Hooks::run(string, array)
#6 /srv/mediawiki/w/includes/parser/Parser.php(479): Parser->internalParseHalfParsed(string, boolean, boolean)
#7 /srv/mediawiki/w/includes/content/WikitextContent.php(341): Parser->parse(string, Title, ParserOptions, boolean, boolean, NULL)
#8 /srv/mediawiki/w/includes/content/AbstractContent.php(517): WikitextContent->fillParserOutput(Title, NULL, ParserOptions, boolean, ParserOutput)
#9 /srv/mediawiki/w/includes/Revision/RenderedRevision.php(239): AbstractContent->getParserOutput(Title, NULL, ParserOptions, boolean)
#10 /srv/mediawiki/w/includes/Revision/RenderedRevision.php(211): MediaWiki\Revision\RenderedRevision->getSlotParserOutputUncached(WikitextContent, boolean)
#11 /srv/mediawiki/w/includes/Revision/RevisionRenderer.php(175): MediaWiki\Revision\RenderedRevision->getSlotParserOutput(string)
#12 /srv/mediawiki/w/includes/Revision/RevisionRenderer.php(128): MediaWiki\Revision\RevisionRenderer->combineSlotOutput(MediaWiki\Revision\RenderedRevision, array)
#13 [internal function]: MediaWiki\Revision\RevisionRenderer->MediaWiki\Revision\{closure}(MediaWiki\Revision\RenderedRevision, array)
#14 /srv/mediawiki/w/includes/Revision/RenderedRevision.php(175): call_user_func(Closure, MediaWiki\Revision\RenderedRevision, array)
#15 /srv/mediawiki/w/includes/Storage/DerivedPageDataUpdater.php(1265): MediaWiki\Revision\RenderedRevision->getRevisionParserOutput()
#16 /srv/mediawiki/w/includes/Storage/DerivedPageDataUpdater.php(1235): MediaWiki\Storage\DerivedPageDataUpdater->getCanonicalParserOutput()
#17 /srv/mediawiki/w/includes/page/WikiPage.php(1994): MediaWiki\Storage\DerivedPageDataUpdater->getPreparedEdit()
#18 /srv/mediawiki/w/includes/api/ApiStashEdit.php(203): WikiPage->prepareContentForEdit(WikitextContent, NULL, User, string, boolean)
#19 /srv/mediawiki/w/includes/api/ApiStashEdit.php(146): ApiStashEdit::parseAndStash(WikiPage, WikitextContent, User, string)
#20 /srv/mediawiki/w/includes/api/ApiMain.php(1570): ApiStashEdit->execute()
#21 /srv/mediawiki/w/includes/api/ApiMain.php(531): ApiMain->executeAction()
#22 /srv/mediawiki/w/includes/api/ApiMain.php(502): ApiMain->executeActionWithErrorHandling()
#23 /srv/mediawiki/w/api.php(87): ApiMain->execute()
#24 {main}
[15-Jan-2019 18:09:33 UTC] PHP Notice:  Trying to get property 'data' of non-object in /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php on line 72
[15-Jan-2019 18:09:33 UTC] png->data value  
2019-01-15 18:09:34 test1 xxxx: [f26aa1c17528124bee6c828d] /w/index.php?title=Matrix_exponential&action=submit   ErrorException from line 69 of /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php: PHP Notice: Undefined property: stdClass::$sanetex
#0 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(69): MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(39): MathMathMLCli->initializeFromCliResponse(stdClass)
#2 /srv/mediawiki/w/extensions/Math/src/MathHooks.php(371): MathMathMLCli::batchEvaluate(array)
#3 /srv/mediawiki/w/includes/Hooks.php(174): MathHooks::onParserAfterTidy(Parser, string)
#4 /srv/mediawiki/w/includes/Hooks.php(202): Hooks::callHook(string, array, array, NULL)
#5 /srv/mediawiki/w/includes/parser/Parser.php(1477): Hooks::run(string, array)
#6 /srv/mediawiki/w/includes/parser/Parser.php(479): Parser->internalParseHalfParsed(string, boolean, boolean)
#7 /srv/mediawiki/w/includes/content/WikitextContent.php(341): Parser->parse(string, Title, ParserOptions, boolean, boolean, NULL)
#8 /srv/mediawiki/w/includes/content/AbstractContent.php(517): WikitextContent->fillParserOutput(Title, NULL, ParserOptions, boolean, ParserOutput)
#9 /srv/mediawiki/w/includes/EditPage.php(4048): AbstractContent->getParserOutput(Title, NULL, ParserOptions)
#10 /srv/mediawiki/w/includes/EditPage.php(3962): EditPage->doPreviewParse(WikitextContent)
#11 /srv/mediawiki/w/includes/EditPage.php(2749): EditPage->getPreviewText()
#12 /srv/mediawiki/w/includes/EditPage.php(702): EditPage->showEditForm()
#13 /srv/mediawiki/w/includes/actions/EditAction.php(60): EditPage->edit()
#14 /srv/mediawiki/w/includes/actions/SubmitAction.php(38): EditAction->show()
#15 /srv/mediawiki/w/includes/MediaWiki.php(501): SubmitAction->show()
#16 /srv/mediawiki/w/includes/MediaWiki.php(294): MediaWiki->performAction(Article, Title)
#17 /srv/mediawiki/w/includes/MediaWiki.php(860): MediaWiki->performRequest()
#18 /srv/mediawiki/w/includes/MediaWiki.php(517): MediaWiki->main()
#19 /srv/mediawiki/w/index.php(42): MediaWiki->run()
#20 {main}
[15-Jan-2019 18:09:34 UTC] PHP Notice:  Undefined property: stdClass::$sanetex in /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php on line 69
[15-Jan-2019 18:09:34 UTC] sanetex value  
[15-Jan-2019 18:09:34 UTC] mathoidStyle value vertical-align: -0.338ex; width:11.843ex; height:2.176ex; 
2019-01-15 18:09:34 test1 xxxx: [f26aa1c17528124bee6c828d] /w/index.php?title=Matrix_exponential&action=submit   ErrorException from line 71 of /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php: PHP Notice: Undefined property: stdClass::$png
#0 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(71): MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(39): MathMathMLCli->initializeFromCliResponse(stdClass)
#2 /srv/mediawiki/w/extensions/Math/src/MathHooks.php(371): MathMathMLCli::batchEvaluate(array)
#3 /srv/mediawiki/w/includes/Hooks.php(174): MathHooks::onParserAfterTidy(Parser, string)
#4 /srv/mediawiki/w/includes/Hooks.php(202): Hooks::callHook(string, array, array, NULL)
#5 /srv/mediawiki/w/includes/parser/Parser.php(1477): Hooks::run(string, array)
#6 /srv/mediawiki/w/includes/parser/Parser.php(479): Parser->internalParseHalfParsed(string, boolean, boolean)
#7 /srv/mediawiki/w/includes/content/WikitextContent.php(341): Parser->parse(string, Title, ParserOptions, boolean, boolean, NULL)
#8 /srv/mediawiki/w/includes/content/AbstractContent.php(517): WikitextContent->fillParserOutput(Title, NULL, ParserOptions, boolean, ParserOutput)
#9 /srv/mediawiki/w/includes/EditPage.php(4048): AbstractContent->getParserOutput(Title, NULL, ParserOptions)
#10 /srv/mediawiki/w/includes/EditPage.php(3962): EditPage->doPreviewParse(WikitextContent)
#11 /srv/mediawiki/w/includes/EditPage.php(2749): EditPage->getPreviewText()
#12 /srv/mediawiki/w/includes/EditPage.php(702): EditPage->showEditForm()
#13 /srv/mediawiki/w/includes/actions/EditAction.php(60): EditPage->edit()
#14 /srv/mediawiki/w/includes/actions/SubmitAction.php(38): EditAction->show()
#15 /srv/mediawiki/w/includes/MediaWiki.php(501): SubmitAction->show()
#16 /srv/mediawiki/w/includes/MediaWiki.php(294): MediaWiki->performAction(Article, Title)
#17 /srv/mediawiki/w/includes/MediaWiki.php(860): MediaWiki->performRequest()
#18 /srv/mediawiki/w/includes/MediaWiki.php(517): MediaWiki->main()
#19 /srv/mediawiki/w/index.php(42): MediaWiki->run()
#20 {main}
[15-Jan-2019 18:09:34 UTC] PHP Notice:  Undefined property: stdClass::$png in /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php on line 71
[15-Jan-2019 18:09:34 UTC] png value  
2019-01-15 18:09:34 test1 xxxx: [f26aa1c17528124bee6c828d] /w/index.php?title=Matrix_exponential&action=submit   ErrorException from line 72 of /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php: PHP Notice: Undefined property: stdClass::$png
#0 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(72): MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(39): MathMathMLCli->initializeFromCliResponse(stdClass)
#2 /srv/mediawiki/w/extensions/Math/src/MathHooks.php(371): MathMathMLCli::batchEvaluate(array)
#3 /srv/mediawiki/w/includes/Hooks.php(174): MathHooks::onParserAfterTidy(Parser, string)
#4 /srv/mediawiki/w/includes/Hooks.php(202): Hooks::callHook(string, array, array, NULL)
#5 /srv/mediawiki/w/includes/parser/Parser.php(1477): Hooks::run(string, array)
#6 /srv/mediawiki/w/includes/parser/Parser.php(479): Parser->internalParseHalfParsed(string, boolean, boolean)
#7 /srv/mediawiki/w/includes/content/WikitextContent.php(341): Parser->parse(string, Title, ParserOptions, boolean, boolean, NULL)
#8 /srv/mediawiki/w/includes/content/AbstractContent.php(517): WikitextContent->fillParserOutput(Title, NULL, ParserOptions, boolean, ParserOutput)
#9 /srv/mediawiki/w/includes/EditPage.php(4048): AbstractContent->getParserOutput(Title, NULL, ParserOptions)
#10 /srv/mediawiki/w/includes/EditPage.php(3962): EditPage->doPreviewParse(WikitextContent)
#11 /srv/mediawiki/w/includes/EditPage.php(2749): EditPage->getPreviewText()
#12 /srv/mediawiki/w/includes/EditPage.php(702): EditPage->showEditForm()
#13 /srv/mediawiki/w/includes/actions/EditAction.php(60): EditPage->edit()
#14 /srv/mediawiki/w/includes/actions/SubmitAction.php(38): EditAction->show()
#15 /srv/mediawiki/w/includes/MediaWiki.php(501): SubmitAction->show()
#16 /srv/mediawiki/w/includes/MediaWiki.php(294): MediaWiki->performAction(Article, Title)
#17 /srv/mediawiki/w/includes/MediaWiki.php(860): MediaWiki->performRequest()
#18 /srv/mediawiki/w/includes/MediaWiki.php(517): MediaWiki->main()
#19 /srv/mediawiki/w/index.php(42): MediaWiki->run()
#20 {main}
[15-Jan-2019 18:09:34 UTC] PHP Notice:  Undefined property: stdClass::$png in /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php on line 72
2019-01-15 18:09:34 test1 xxxx: [f26aa1c17528124bee6c828d] /w/index.php?title=Matrix_exponential&action=submit   ErrorException from line 72 of /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php: PHP Notice: Trying to get property 'data' of non-object
#0 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(72): MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php(39): MathMathMLCli->initializeFromCliResponse(stdClass)
#2 /srv/mediawiki/w/extensions/Math/src/MathHooks.php(371): MathMathMLCli::batchEvaluate(array)
#3 /srv/mediawiki/w/includes/Hooks.php(174): MathHooks::onParserAfterTidy(Parser, string)
#4 /srv/mediawiki/w/includes/Hooks.php(202): Hooks::callHook(string, array, array, NULL)
#5 /srv/mediawiki/w/includes/parser/Parser.php(1477): Hooks::run(string, array)
#6 /srv/mediawiki/w/includes/parser/Parser.php(479): Parser->internalParseHalfParsed(string, boolean, boolean)
#7 /srv/mediawiki/w/includes/content/WikitextContent.php(341): Parser->parse(string, Title, ParserOptions, boolean, boolean, NULL)
#8 /srv/mediawiki/w/includes/content/AbstractContent.php(517): WikitextContent->fillParserOutput(Title, NULL, ParserOptions, boolean, ParserOutput)
#9 /srv/mediawiki/w/includes/EditPage.php(4048): AbstractContent->getParserOutput(Title, NULL, ParserOptions)
#10 /srv/mediawiki/w/includes/EditPage.php(3962): EditPage->doPreviewParse(WikitextContent)
#11 /srv/mediawiki/w/includes/EditPage.php(2749): EditPage->getPreviewText()
#12 /srv/mediawiki/w/includes/EditPage.php(702): EditPage->showEditForm()
#13 /srv/mediawiki/w/includes/actions/EditAction.php(60): EditPage->edit()
#14 /srv/mediawiki/w/includes/actions/SubmitAction.php(38): EditAction->show()
#15 /srv/mediawiki/w/includes/MediaWiki.php(501): SubmitAction->show()
#16 /srv/mediawiki/w/includes/MediaWiki.php(294): MediaWiki->performAction(Article, Title)
#17 /srv/mediawiki/w/includes/MediaWiki.php(860): MediaWiki->performRequest()
#18 /srv/mediawiki/w/includes/MediaWiki.php(517): MediaWiki->main()
#19 /srv/mediawiki/w/index.php(42): MediaWiki->run()
#20 {main}
[15-Jan-2019 18:09:34 UTC] PHP Notice:  Trying to get property 'data' of non-object in /srv/mediawiki/w/extensions/Math/src/MathMathMLCli.php on line 72
[15-Jan-2019 18:09:34 UTC] png->data value