[b7291b296d203fcf502f0309] /index.php/Widgettest Error: Call to undefined method MediaWiki\Content\ContentHandler::getContentText()

Backtrace:

from /usr/share/mediawiki/extensions/Widgets/WidgetRenderer.php(160)
#0 /usr/share/mediawiki/extensions/Widgets/vendor/smarty/smarty/libs/sysplugins/smarty_internal_resource_registered.php(82): WidgetRenderer::wiki_get_template(string, null, Smarty)
#1 /usr/share/mediawiki/extensions/Widgets/vendor/smarty/smarty/libs/sysplugins/smarty_template_source.php(211): Smarty_Internal_Resource_Registered->getContent(Smarty_Template_Source)
#2 /usr/share/mediawiki/extensions/Widgets/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatecompilerbase.php(479): Smarty_Template_Source->getContent()
#3 /usr/share/mediawiki/extensions/Widgets/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatecompilerbase.php(401): Smarty_Internal_TemplateCompilerBase->compileTemplateSource(Smarty_Internal_Template, bool, null)
#4 /usr/share/mediawiki/extensions/Widgets/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(184): Smarty_Internal_TemplateCompilerBase->compileTemplate(Smarty_Internal_Template)
#5 /usr/share/mediawiki/extensions/Widgets/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(141): Smarty_Template_Compiled->compileTemplateSource(Smarty_Internal_Template)
#6 /usr/share/mediawiki/extensions/Widgets/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(105): Smarty_Template_Compiled->process(Smarty_Internal_Template)
#7 /usr/share/mediawiki/extensions/Widgets/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(216): Smarty_Template_Compiled->render(Smarty_Internal_Template)
#8 /usr/share/mediawiki/extensions/Widgets/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(232): Smarty_Internal_Template->render(bool, int)
#9 /usr/share/mediawiki/extensions/Widgets/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(116): Smarty_Internal_TemplateBase->_execute(Smarty_Internal_Template, null, null, null, int)
#10 /usr/share/mediawiki/extensions/Widgets/WidgetRenderer.php(114): Smarty_Internal_TemplateBase->fetch(string)
#11 /usr/share/mediawiki/includes/Parser/Parser.php(3402): WidgetRenderer::renderWidget(MediaWiki\Parser\Parser, string, string)
#12 /usr/share/mediawiki/includes/Parser/Parser.php(3057): MediaWiki\Parser\Parser->callParserFunction(MediaWiki\Parser\PPFrame_Hash, string, array, bool)
#13 /usr/share/mediawiki/includes/Parser/PPFrame_Hash.php(267): MediaWiki\Parser\Parser->braceSubstitution(array, MediaWiki\Parser\PPFrame_Hash)
#14 /usr/share/mediawiki/includes/Parser/Parser.php(2879): MediaWiki\Parser\PPFrame_Hash->expand(MediaWiki\Parser\PPNode_Hash_Tree, int)
#15 /usr/share/mediawiki/includes/Parser/Parser.php(1500): MediaWiki\Parser\Parser->replaceVariables(string)
#16 /usr/share/mediawiki/includes/Parser/Parser.php(621): MediaWiki\Parser\Parser->internalParse(string)
#17 /usr/share/mediawiki/includes/Content/WikitextContentHandler.php(360): MediaWiki\Parser\Parser->parse(string, MediaWiki\Title\Title, MediaWiki\Parser\ParserOptions, bool, bool, int)
#18 /usr/share/mediawiki/includes/Content/ContentHandler.php(1574): MediaWiki\Content\WikitextContentHandler->fillParserOutput(MediaWiki\Content\WikitextContent, MediaWiki\Content\Renderer\ContentParseParams, MediaWiki\Parser\ParserOutput)
#19 /usr/share/mediawiki/includes/Content/Renderer/ContentRenderer.php(62): MediaWiki\Content\ContentHandler->getParserOutput(MediaWiki\Content\WikitextContent, MediaWiki\Content\Renderer\ContentParseParams)
#20 /usr/share/mediawiki/includes/Revision/RenderedRevision.php(246): MediaWiki\Content\Renderer\ContentRenderer->getParserOutput(MediaWiki\Content\WikitextContent, MediaWiki\Page\PageIdentityValue, MediaWiki\Revision\RevisionStoreRecord, MediaWiki\Parser\ParserOptions, array)
#21 /usr/share/mediawiki/includes/Revision/RenderedRevision.php(219): MediaWiki\Revision\RenderedRevision->getSlotParserOutputUncached(MediaWiki\Content\WikitextContent, array)
#22 /usr/share/mediawiki/includes/Revision/RevisionRenderer.php(226): MediaWiki\Revision\RenderedRevision->getSlotParserOutput(string, array)
#23 /usr/share/mediawiki/includes/Revision/RevisionRenderer.php(159): MediaWiki\Revision\RevisionRenderer->combineSlotOutput(MediaWiki\Revision\RenderedRevision, MediaWiki\Parser\ParserOptions, array)
#24 /usr/share/mediawiki/includes/Revision/RenderedRevision.php(182): MediaWiki\Revision\RevisionRenderer->{closure:MediaWiki\Revision\RevisionRenderer::getRenderedRevision():157}(MediaWiki\Revision\RenderedRevision, array)
#25 /usr/share/mediawiki/includes/Page/ParserOutputAccess.php(593): MediaWiki\Revision\RenderedRevision->getRevisionParserOutput()
#26 /usr/share/mediawiki/includes/Page/ParserOutputAccess.php(684): MediaWiki\Page\ParserOutputAccess->renderRevision(MediaWiki\Page\WikiPage, MediaWiki\Parser\ParserOptions, MediaWiki\Revision\RevisionStoreRecord, array)
#27 /usr/share/mediawiki/includes/PoolCounter/PoolCounterWorkViaCallback.php(68): MediaWiki\Page\ParserOutputAccess->{closure:MediaWiki\Page\ParserOutputAccess::newPoolWork():684}()
#28 /usr/share/mediawiki/includes/PoolCounter/PoolCounterWork.php(159): MediaWiki\PoolCounter\PoolCounterWorkViaCallback->doWork()
#29 /usr/share/mediawiki/includes/Page/ParserOutputAccess.php(498): MediaWiki\PoolCounter\PoolCounterWork->execute()
#30 /usr/share/mediawiki/includes/Page/Article.php(882): MediaWiki\Page\ParserOutputAccess->getParserOutput(MediaWiki\Page\WikiPage, MediaWiki\Parser\ParserOptions, MediaWiki\Revision\RevisionStoreRecord, array)
#31 /usr/share/mediawiki/includes/Page/Article.php(543): MediaWiki\Page\Article->generateContentOutput(MediaWiki\User\User, MediaWiki\Parser\ParserOptions, int, MediaWiki\Output\OutputPage, array)
#32 /usr/share/mediawiki/includes/Actions/ViewAction.php(71): MediaWiki\Page\Article->view()
#33 /usr/share/mediawiki/includes/Actions/ActionEntryPoint.php(753): MediaWiki\Actions\ViewAction->show()
#34 /usr/share/mediawiki/includes/Actions/ActionEntryPoint.php(511): MediaWiki\Actions\ActionEntryPoint->performAction(MediaWiki\Page\Article, MediaWiki\Title\Title)
#35 /usr/share/mediawiki/includes/Actions/ActionEntryPoint.php(145): MediaWiki\Actions\ActionEntryPoint->performRequest()
#36 /usr/share/mediawiki/includes/MediaWikiEntryPoint.php(180): MediaWiki\Actions\ActionEntryPoint->execute()
#37 /usr/share/mediawiki/index.php(44): MediaWiki\MediaWikiEntryPoint->run()
#38 {main}