Handling "App\Message\SyncCalDavMessage" failed: An exception occurred while executing a query: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'meeting_provider_identifier' cannot be null

{
  "message": "Error thrown while handling message App\\Message\\SyncCalDavMessage. Removing from transport after 3 retries. Error: \"Handling \"App\\Message\\SyncCalDavMessage\" failed: An exception occurred while executing a query: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'meeting_provider_identifier' cannot be null\"",
  "context": {
    "class": "App\\Message\\SyncCalDavMessage",
    "message_id": 1177,
    "retryCount": 3,
    "error": "Handling \"App\\Message\\SyncCalDavMessage\" failed: An exception occurred while executing a query: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'meeting_provider_identifier' cannot be null",
    "exception": {
      "class": "Symfony\\Component\\Messenger\\Exception\\HandlerFailedException",
      "message": "Handling \"App\\Message\\SyncCalDavMessage\" failed: An exception occurred while executing a query: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'meeting_provider_identifier' cannot be null",
      "code": 1048,
      "file": "/srv/app/vendor/symfony/messenger/Middleware/HandleMessageMiddleware.php:124",
      "previous": {
        "class": "Doctrine\\DBAL\\Exception\\NotNullConstraintViolationException",
        "message": "An exception occurred while executing a query: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'meeting_provider_identifier' cannot be null",
        "code": 1048,
        "file": "/srv/app/vendor/doctrine/dbal/src/Driver/API/MySQL/ExceptionConverter.php:90",
        "previous": {
          "class": "Doctrine\\DBAL\\Driver\\PDO\\Exception",
          "message": "SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'meeting_provider_identifier' cannot be null",
          "code": 1048,
          "file": "/srv/app/vendor/doctrine/dbal/src/Driver/PDO/Exception.php:24",
          "previous": {
            "class": "PDOException",
            "message": "SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'meeting_provider_identifier' cannot be null",
            "code": 23000,
            "file": "/srv/app/vendor/doctrine/dbal/src/Driver/PDO/Statement.php:55"
          }
        }
      }
    }
  },
  "level": 500,
  "level_name": "CRITICAL",
  "channel": "messenger",
  "datetime": "2025-09-10T11:44:32.594006+02:00",
  "extra": {}
}