Internal error

From BR Bullpen

[5e32dec516ab58249603f2b6] /bullpen/Tampa_Bay_Rays InvalidArgumentException from line 183 of /data/br/www/bpv/includes/filebackend/FileBackendGroup.php: No backend defined with the name `Array`.

Backtrace:

#0 /data/br/www/bpv/includes/filebackend/FileBackendGroup.php(155): FileBackendGroup->config(array)
#1 /data/br/www/bpv/extensions/timeline/Timeline.body.php(36): FileBackendGroup->get(array)
#2 [internal function]: Timeline::renderTimeline(string, array, Parser, PPFrame_DOM)
#3 /data/br/www/bpv/includes/parser/Parser.php(3851): call_user_func_array(string, array)
#4 /data/br/www/bpv/includes/parser/Preprocessor_DOM.php(1260): Parser->extensionSubstitution(array, PPFrame_DOM)
#5 /data/br/www/bpv/includes/parser/Parser.php(2917): PPFrame_DOM->expand(PPNode_DOM, integer)
#6 /data/br/www/bpv/includes/parser/Parser.php(1265): Parser->replaceVariables(string)
#7 /data/br/www/bpv/includes/parser/Parser.php(441): Parser->internalParse(string)
#8 /data/br/www/bpv/includes/content/WikitextContent.php(330): Parser->parse(string, Title, ParserOptions, boolean, boolean, integer)
#9 /data/br/www/bpv/includes/content/AbstractContent.php(497): WikitextContent->fillParserOutput(Title, integer, ParserOptions, boolean, ParserOutput)
#10 /data/br/www/bpv/includes/poolcounter/PoolWorkArticleView.php(140): AbstractContent->getParserOutput(Title, integer, ParserOptions)
#11 /data/br/www/bpv/includes/poolcounter/PoolCounterWork.php(123): PoolWorkArticleView->doWork()
#12 /data/br/www/bpv/includes/page/Article.php(651): PoolCounterWork->execute()
#13 /data/br/www/bpv/includes/actions/ViewAction.php(71): Article->view()
#14 /data/br/www/bpv/includes/MediaWiki.php(495): ViewAction->show()
#15 /data/br/www/bpv/includes/MediaWiki.php(289): MediaWiki->performAction(Article, Title)
#16 /data/br/www/bpv/includes/MediaWiki.php(851): MediaWiki->performRequest()
#17 /data/br/www/bpv/includes/MediaWiki.php(512): MediaWiki->main()
#18 /data/br/www/bpv/index.php(43): MediaWiki->run()
#19 {main}