Fatal error: Uncaught Error: Interface 'Drupal\group\Access\GroupPermissionsHashGeneratorInterface' not found in /var/www/html/tmp/contrib/group/src/Access/GroupPermissionsHashGenerator.php:15 Stack trace: #0 {main} thrown in /var/www/html/tmp/contrib/group/src/Access/GroupPermissionsHashGenerator.php on line 15