Попробуйте обновить страницу через несколько минут.
(Нет доступа к базе данных)
Backtrace:
#0 /var/www/html/includes/libs/rdbms/loadbalancer/LoadBalancer.php(897): Database->reportConnectionError('Too many connec...')
#1 /var/www/html/includes/libs/rdbms/loadbalancer/LoadBalancer.php(572): LoadBalancer->reportConnectionError()
#2 /var/www/html/includes/GlobalFunctions.php(3075): LoadBalancer->getConnection(0, Array, false)
#3 /var/www/html/includes/Revision.php(322): wfGetDB(-1)
#4 /var/www/html/includes/Revision.php(111): Revision::newFromConds(Array, 0)
#5 /var/www/html/extensions/MobileFrontend/includes/specials/SpecialMobileDiff.php(41): Revision::newFromId(296671)
#6 /var/www/html/extensions/MobileFrontend/includes/specials/SpecialMobileDiff.php(84): SpecialMobileDiff::getRevision(296671)
#7 /var/www/html/extensions/MobileFrontend/includes/specials/SpecialMobileDiff.php(104): SpecialMobileDiff->getRevisionsToCompare(Array)
#8 /var/www/html/extensions/MobileFrontend/includes/specials/MobileSpecialPage.php(53): SpecialMobileDiff->executeWhenAvailable('296671')
#9 /var/www/html/includes/specialpage/SpecialPage.php(522): MobileSpecialPage->execute('296671')
#10 /var/www/html/includes/specialpage/SpecialPageFactory.php(576): SpecialPage->run('296671')
#11 /var/www/html/includes/MediaWiki.php(283): SpecialPageFactory::executePath(Object(Title), Object(RequestContext))
#12 /var/www/html/includes/MediaWiki.php(851): MediaWiki->performRequest()
#13 /var/www/html/includes/MediaWiki.php(512): MediaWiki->main()
#14 /var/www/html/index.php(43): MediaWiki->run()
#15 {main}