Undefined variable: wgContLang in /classes/lister/Lister.php on line 673

Created by: plegault3397

[W7yZ65uZ6E5WjQ7cpmQ16gAAAAk] /index.php?title=Main_Page&action=submit Error from line 673 of /app/mediawiki/extensions/DynamicPageList/classes/lister/Lister.php: Call to a member function getDirMark() on null

Backtrace:

#0 /app/mediawiki/extensions/DynamicPageList/classes/lister/Lister.php(632): DPL\Lister\Lister->formatItem(DPL\Article, NULL)
 #1 /app/mediawiki/extensions/DynamicPageList/classes/lister/Lister.php(602): DPL\Lister\Lister->formatList(array, integer, integer)
 #2 /app/mediawiki/extensions/DynamicPageList/classes/Parse.php(273): DPL\Lister\Lister->format(array)
 #3 /app/mediawiki/extensions/DynamicPageList/DynamicPageListHooks.php(302): DPL\Parse->parse(string, Parser, NULL, NULL, boolean)
 #4 /app/mediawiki/includes/parser/Parser.php(3426): DynamicPageListHooks::dplParserFunction(Parser, string, string, string, string, string, string)
 #5 /app/mediawiki/includes/parser/Parser.php(3127): Parser->callParserFunction(PPFrame_DOM, string, array)
 #6 /app/mediawiki/includes/parser/Preprocessor_DOM.php(1277): Parser->braceSubstitution(array, PPFrame_DOM)
 #7 /app/mediawiki/includes/parser/Parser.php(2942): PPFrame_DOM->expand(DOMElement, integer)
 #8 /app/mediawiki/includes/parser/Parser.php(1293): Parser->replaceVariables(string)
 #9 /app/mediawiki/includes/parser/Parser.php(443): Parser->internalParse(string)
 #10 /app/mediawiki/includes/content/WikitextContent.php(323): Parser->parse(string, Title, ParserOptions, boolean, boolean, NULL)
 #11 /app/mediawiki/includes/content/AbstractContent.php(516): WikitextContent->fillParserOutput(Title, NULL, ParserOptions, boolean, ParserOutput)
 #12 /app/mediawiki/includes/page/WikiPage.php(2129): AbstractContent->getParserOutput(Title, NULL, ParserOptions)
 #13 /app/mediawiki/includes/page/WikiPage.php(1655): WikiPage->prepareContentForEdit(WikitextContent, NULL, User, string, boolean)
 #14 /app/mediawiki/includes/EditPage.php(2214): WikiPage->doEditContent(WikitextContent, string, i 
 integer, boolean, User, string, array, integer)
 #15 /app/mediawiki/includes/EditPage.php(1506): EditPage->internalAttemptSave(array, boolean)
 #16 /app/mediawiki/includes/EditPage.php(652): EditPage->attemptSave(array)
 #17 /app/mediawiki/includes/actions/EditAction.php(60): EditPage->edit()
 #18 /app/mediawiki/includes/actions/SubmitAction.php(38): EditAction->show()
 #19 /app/mediawiki/includes/MediaWiki.php(500): SubmitAction->show()
 #20 /app/mediawiki/includes/MediaWiki.php(294): MediaWiki->performAction(Article, Title)
 #21 /app/mediawiki/includes/MediaWiki.php(861): MediaWiki->performRequest()
 #22 /app/mediawiki/includes/MediaWiki.php(524): MediaWiki->main()
 #23 /app/mediawiki/index.php(42): MediaWiki->run()
 #24 {main}

I'm getting the above error With this:

{{#dpl:
|namespace=
|ordermethod=counter
|order          = descending
|addpagecounter = true
|count=11
}}

MediaWiki | 1.31.1 PHP | 7.1.8 (apache2handler) MySQL | 5.6.10 DynamicPageList3 | 3.3.2 (92c39650)11:31, 24 August 2017