Checking fields indicating error

Good afternoon In your personal account there is a Forms block https://univer.1b.app/admin/shop/boxclient/10/interface/?workflowid=101&groupid=15 The Form itself https://univer.1b.app/app/forms/3/edit/ Client account https://univer.1b.app/client/order/188058/ In the IPN field there is a field check (12 digits) If you fill out the form using the link https://univer.1b.app/form/0/3/, the field check works and an error occurs. If you fill out the form from your personal account https://univer.1b.app/client/order/188058/ the error does not appear. Tell me how to set up verification of Form fields in the client’s personal account with the error text when the Form is filled out incorrectly?