Unable to upload to server from mobile device. error type: payment required (402) a https://odk.ona.io/dmmu

What is the problem? Please be detailed.

What ODK tool and version are you using? And on what device and operating system version?

What steps can we take to reproduce the problem?

What you have you tried to fix the problem?

Anything else we should know or have? If you have a test form or screenshots or logs, attach here.

This looks like you haven't paid for the server subscription from ONA. Try to confirm with ONA on whether your server is working or has been shut down.