Repair Tuya device fails

I’m trying to get my garden up and running again but some devices (Tuya) are not working this year, they worked perfect last summer but now when i plugged them back in i can no longer control them.
When i attempt to repair i am asked to log in to Tuya but i just get the following error when doing so.

What should I do?

This specific Tuya app is broken and abandoned some time ago:

You can use the Tuya Cloud community app instead:

I still use the abandoned official app but there’s a bug that means devices go off line from time to time. As you say, repairing is not an option. Turning the device off and on again sometimes fixes the issue

Otherwise, I delete the problem device and add it back in again. This does not raise a password challenge so still works OK. I then have to repair any flows pointing to the deleted device.

Andy