Warning: Use of undefined constant NS_WIDGET - assumed 'NS_WIDGET' (this will throw an Error in a future version of PHP) in /var/www/html/LocalSettings.php on line 153

Warning: Use of undefined constant NS_MODULE - assumed 'NS_MODULE' (this will throw an Error in a future version of PHP) in /var/www/html/LocalSettings.php on line 154

Fatal error: Uncaught ExtensionDependencyError: Lockdown is not compatible with the current MediaWiki core (version 1.36.1), it requires: >= 1.41.0. in /var/www/html/includes/registration/ExtensionRegistry.php:406 Stack trace: #0 /var/www/html/includes/registration/ExtensionRegistry.php(230): ExtensionRegistry->readFromQueue(Array) #1 /var/www/html/includes/Setup.php(168): ExtensionRegistry->loadFromQueue() #2 /var/www/html/includes/WebStart.php(87): require_once('/var/www/html/i...') #3 /var/www/html/index.php(44): require('/var/www/html/i...') #4 {main} thrown in /var/www/html/includes/registration/ExtensionRegistry.php on line 406