When we release a new Form Publisher version, new permissions might be added. If you do not reauthorize Form Publisher, the add-on stops working (including document generation and email notifications).
Form Publisher will send you an email to inform you about this new authorization.
To accept the new authorizations, open Form Publisher on your Google Form, and from the menu select Form status and account info.
A new window opens, click on Allow to accept the new permissions.
info Learn more about Form Publisher's permissions, please read the following article: [DATA ACCESS] What permissions are needed to use Form Publisher?