Fatal error: Uncaught Error: Class 'Wikimedia\Services\ServiceContainer' not found in /var/www/html/includes/MediaWikiServices.php:152
Stack trace:
#0 /var/www/html/includes/AutoLoader.php(109): require()
#1 [internal function]: AutoLoader::autoload()
#2 /var/www/html/includes/Setup.php(534): spl_autoload_call()
#3 /var/www/html/includes/WebStart.php(89): require_once('/var/www/html/i...')
#4 /var/www/html/index.php(44): require('/var/www/html/i...')
#5 {main}
thrown in /var/www/html/includes/MediaWikiServices.php on line 152