[3b5060f469d36da37d3aa7c6] /w/index.php?title=Special:UserLogout&returnto=Mavetuna MWException from line 176 of /srv/mediawiki/php-master/includes/Hooks.php: Invalid callback SecurePoll::onUserLogout in hooks for UserLogout
Backtrace:

#0 /srv/mediawiki/php-master/includes/user/User.php(3710): Hooks::run(string, array)
#1 /srv/mediawiki/php-master/includes/specials/SpecialUserlogout.php(65): User->logout()
#2 /srv/mediawiki/php-master/includes/specialpage/SpecialPage.php(412): SpecialUserlogout->execute(NULL)
#3 /srv/mediawiki/php-master/includes/specialpage/SpecialPageFactory.php(565): SpecialPage->run(NULL)
#4 /srv/mediawiki/php-master/includes/MediaWiki.php(282): SpecialPageFactory::executePath(Title, RequestContext)
#5 /srv/mediawiki/php-master/includes/MediaWiki.php(738): MediaWiki->performRequest()
#6 /srv/mediawiki/php-master/includes/MediaWiki.php(519): MediaWiki->main()
#7 /srv/mediawiki/php-master/index.php(43): MediaWiki->run()
#8 /srv/mediawiki/w/index.php(3): include(string)
#9 {main}