Error: Generic Exception : Error Form is not allowed to make submissions to the Form in the Server

four users in different cities have accounts in kobo humanitarian response as admins , each users using the same excel form in their account and maked deployed, and each admins has added hundred of users in their cities to make submission on that survery , it work find but after 20 december 2021 till now all sumbission have errors and not sync with their own server. and error ( Generec exception : Error Form in not allowed to make sumbmission to Server ) Appeared . what is the solution ?

Welcome to the community, @Diyar! Could you also share with the community a screenshot of your error message that you see in your Collect android app? Maybe that should be helpful for the community to understand your issue pictorially.