Warning: require(/var/www/html/drupal-11/vendor/composer/../drupal/core/includes/bootstrap.inc): Failed to open stream: No such file or directory in /var/www/html/drupal-11/vendor/composer/autoload_real.php on line 45

Fatal error: Uncaught Error: Failed opening required '/var/www/html/drupal-11/vendor/composer/../drupal/core/includes/bootstrap.inc' (include_path='/var/www/html/drupal-11/vendor/pear/archive_tar:/var/www/html/drupal-11/vendor/pear/auth_sasl:/var/www/html/drupal-11/vendor/pear/console_getopt:/var/www/html/drupal-11/vendor/pear/db:/var/www/html/drupal-11/vendor/pear/log:/var/www/html/drupal-11/vendor/pear/mail:/var/www/html/drupal-11/vendor/pear/mail_mime:/var/www/html/drupal-11/vendor/pear/net_smtp:/var/www/html/drupal-11/vendor/pear/net_socket:/var/www/html/drupal-11/vendor/pear/pear-core-minimal/src:/var/www/html/drupal-11/vendor/pear/pear_exception:/var/www/html/drupal-11/vendor/pear/validate_finance_creditcard:.:/usr/share/php') in /var/www/html/drupal-11/vendor/composer/autoload_real.php:45 Stack trace: #0 /var/www/html/drupal-11/vendor/composer/autoload_real.php(49): {closure}() #1 /var/www/html/drupal-11/vendor/autoload.php(22): ComposerAutoloaderInitf2bbc4e4e4d432259f4297fd2d96ec9c::getLoader() #2 /var/www/html/drupal-11/autoload.php(15): require('...') #3 /var/www/html/drupal-11/index.php(14): require_once('...') #4 {main} thrown in /var/www/html/drupal-11/vendor/composer/autoload_real.php on line 45