Start by checking the console and look for the first useful error message rather than the consequences displayed afterward.
Check the startup settings, selected version, storage space, and allocated resources. If you have just modified files, temporarily revert to the last known configuration or restore a backup if necessary.
If the problem persists, send support the error message and the changes made immediately before the incident.
RememberAlways use the information shown in your DJOBOX area for ports, access details and settings specific to your service.