We are facing submission issue recently and while submitting new record to the server it gives: The data server for your form or the Enketo server is down. Please try again later or contact support@example.org. (503) error, there is no specific message so we can troubleshoot.
@Belalnoory, could you kindly share with us a screenshot of your issue, please? Please also share with us the server you are using. This should help us investigate the issue.