Error on all devices - 'You do not have permission to access'

I’m having a problem with my app because every time I try to save a new entry and try to sync the app, its showing me said error.
“Unable to add/edit/delete row in table ‘Intimation’. → You do not have permission to access one or more tables in the app.”
I think this is a bug because my app was working just fine until today. Any help would be appreciated.

Is it possible that you table(s) is set “As app user”? You can find that option from Table’s definition.

It was set “As app user” before but now I changed it. Should it solve the problem?

Just checking… did that change fix the issue?