Internal error

[a255cb51ae5a9e22fbdc2d68] /Template:Poop2 TypeError from line 325 of /webstuff/pnc/extensions/pncextensions.php: strtolower(): Argument #1 ($string) must be of type string, array given

Backtrace:

#0 /webstuff/pnc/extensions/pncextensions.php(325): strtolower()
#1 /webstuff/pnc/includes/parser/Parser.php(4293): FormatRating()
#2 /webstuff/pnc/includes/parser/PPFrame_Hash.php(328): Parser->extensionSubstitution()
#3 /webstuff/pnc/includes/parser/Parser.php(3330): PPFrame_Hash->expand()
#4 /webstuff/pnc/includes/parser/Parser.php(1489): Parser->replaceVariables()
#5 /webstuff/pnc/includes/parser/Parser.php(593): Parser->internalParse()
#6 /webstuff/pnc/includes/content/WikitextContent.php(368): Parser->parse()
#7 /webstuff/pnc/includes/content/AbstractContent.php(555): WikitextContent->fillParserOutput()
#8 /webstuff/pnc/includes/Revision/RenderedRevision.php(264): AbstractContent->getParserOutput()
#9 /webstuff/pnc/includes/Revision/RenderedRevision.php(236): MediaWiki\Revision\RenderedRevision->getSlotParserOutputUncached()
#10 /webstuff/pnc/includes/Revision/RevisionRenderer.php(215): MediaWiki\Revision\RenderedRevision->getSlotParserOutput()
#11 /webstuff/pnc/includes/Revision/RevisionRenderer.php(152): MediaWiki\Revision\RevisionRenderer->combineSlotOutput()
#12 [internal function]: MediaWiki\Revision\RevisionRenderer->MediaWiki\Revision\{closure}()
#13 /webstuff/pnc/includes/Revision/RenderedRevision.php(198): call_user_func()
#14 /webstuff/pnc/includes/poolcounter/PoolWorkArticleView.php(196): MediaWiki\Revision\RenderedRevision->getRevisionParserOutput()
#15 /webstuff/pnc/includes/poolcounter/PoolCounterWork.php(125): PoolWorkArticleView->doWork()
#16 /webstuff/pnc/includes/page/Article.php(791): PoolCounterWork->execute()
#17 /webstuff/pnc/includes/actions/ViewAction.php(63): Article->view()
#18 /webstuff/pnc/includes/MediaWiki.php(511): ViewAction->show()
#19 /webstuff/pnc/includes/MediaWiki.php(302): MediaWiki->performAction()
#20 /webstuff/pnc/includes/MediaWiki.php(900): MediaWiki->performRequest()
#21 /webstuff/pnc/includes/MediaWiki.php(527): MediaWiki->main()
#22 /webstuff/pnc/index.php(44): MediaWiki->run()
#23 {main}