Fatal error: Uncaught Error: Interface 'MediaWiki\Hook\SidebarBeforeOutputHook' not found in /home/mapeador/solecov2/w/extensions/CiteThisPage/includes/Hooks.php:9 Stack trace: #0 {main} thrown in /home/mapeador/solecov2/w/extensions/CiteThisPage/includes/Hooks.php on line 9