A commcare app displays this message when a CHW clicks on the follow up form in the field. She can register a client in the registration form without any problem. I tried to log in to the same commcare app on another phone with her username and password, but the problem continues.
*When a different chw logs in to the commcare app on her phone, everything works well.
I have tried the following steps to solve the problem:
Sync with Server
Clear User Data
Reinstall the app
But the problem is not yet solved and it has been going on for 3 three weeks.