Error
Request URL: https://en.wikipedia.org/w/?title=Special:Book&bookcmd=suggest
Request ID: XSGvWApAMFsAADX6ek0AAAAX
[XSGvWApAMFsAADX6ek0AAAAX] /w/index.php?title=Special:Book&bookcmd=suggest ErrorException from line 134 of /srv/mediawiki/php-1.34.0-wmf.11/extensions/Collection/includes/CollectionProposals.php: PHP Warning: count(): Parameter must be an array or an object that implements Countable
#0 /srv/mediawiki/php-1.34.0-wmf.11/extensions/Collection/includes/CollectionProposals.php(134): MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /srv/mediawiki/php-1.34.0-wmf.11/extensions/Collection/includes/CollectionProposals.php(126): CollectionProposals->addCollectionArticles()
#2 /srv/mediawiki/php-1.34.0-wmf.11/extensions/Collection/includes/CollectionProposals.php(106): CollectionProposals->updateLinkList()
#3 /srv/mediawiki/php-1.34.0-wmf.11/extensions/Collection/includes/CollectionSuggest.php(198): CollectionProposals->getProposals(integer)
#4 /srv/mediawiki/php-1.34.0-wmf.11/extensions/Collection/includes/CollectionSuggest.php(53): CollectionSuggest::getCollectionSuggestTemplate(string, string)
#5 /srv/mediawiki/php-1.34.0-wmf.11/extensions/Collection/includes/Specials/SpecialCollection.php(334): CollectionSuggest::run()
#6 /srv/mediawiki/php-1.34.0-wmf.11/extensions/Collection/includes/Specials/SpecialCollection.php(295): SpecialCollection->processSuggestCommand()
#7 /srv/mediawiki/php-1.34.0-wmf.11/includes/specialpage/SpecialPage.php(571): SpecialCollection->execute(NULL)
#8 /srv/mediawiki/php-1.34.0-wmf.11/includes/specialpage/SpecialPageFactory.php(581): SpecialPage->run(NULL)
#9 /srv/mediawiki/php-1.34.0-wmf.11/includes/MediaWiki.php(288): MediaWiki\Special\SpecialPageFactory->executePath(Title, RequestContext)
#10 /srv/mediawiki/php-1.34.0-wmf.11/includes/MediaWiki.php(884): MediaWiki->performRequest()
#11 /srv/mediawiki/php-1.34.0-wmf.11/includes/MediaWiki.php(515): MediaWiki->main()
#12 /srv/mediawiki/php-1.34.0-wmf.11/index.php(42): MediaWiki->run()
#13 /srv/mediawiki/w/index.php(3): require(string)
#14 {main}Impact
Unknown.
Notes
Seen thrice in the last 24 hours, and 16 times in the last 7 days.