Fatal error: Uncaught Error: Class "MediaWiki\Extension\Scribunto\ScribuntoEngineBase" not found in /var/www/html/extensions/Scribunto/includes/Engines/LuaCommon/LuaEngine.php:21 Stack trace: #0 {main} thrown in /var/www/html/extensions/Scribunto/includes/Engines/LuaCommon/LuaEngine.php on line 21