If the error isn’t repairable by the user, blocking them from using the app entirely is mean. If the error screen has a message telling the user where to go to

If the error isn’t repairable by the user, blocking them from using the app entirely is mean. If the error screen has a message telling the user where to go to set their name, that’s fine but annoying. If the error screen tells the user they can’t use the app until someone checks a dashboard and sees a large enough increase in errors to investigate, that’s a bigger problem.