Warning: require(/var/www/html/vendor/composer/../symfony/deprecation-contracts/function.php): Failed to open stream: No such file or directory in /var/www/html/vendor/composer/autoload_real.php on line 46

Fatal error: Uncaught Error: Failed opening required '/var/www/html/vendor/composer/../symfony/deprecation-contracts/function.php' (include_path='/var/www/html/vendor/pear/console_getopt:/var/www/html/vendor/pear/mail:/var/www/html/vendor/pear/mail_mime:/var/www/html/vendor/pear/net_smtp:/var/www/html/vendor/pear/net_socket:/var/www/html/vendor/pear/net_url2:/var/www/html/vendor/pear/pear-core-minimal/src:/var/www/html/vendor/pear/pear_exception:.:/usr/local/lib/php') in /var/www/html/vendor/composer/autoload_real.php:46 Stack trace: #0 /var/www/html/vendor/composer/autoload_real.php(50): {closure}('6e3fae29631ef28...', '/var/www/html/v...') #1 /var/www/html/vendor/autoload.php(22): ComposerAutoloaderInit_mediawiki_vendor::getLoader() #2 /var/www/html/includes/AutoLoader.php(247): require_once('/var/www/html/v...') #3 /var/www/html/includes/Setup.php(110): require_once('/var/www/html/i...') #4 /var/www/html/includes/WebStart.php(73): require_once('/var/www/html/i...') #5 /var/www/html/index.php(36): require('/var/www/html/i...') #6 {main} thrown in /var/www/html/vendor/composer/autoload_real.php on line 46