Restore from backup. Need to reauthenticate all clients

Hi mates,
I have succesfully restored my Nextcloud 17.0.2 installation (files and database) on a new system.
Now all the clients need to be re-authenticated.
I have already tried occ maintenance:data-fingerprint but nothing changed.
Have only this log:
Sabre\DAV\Exception\NotAuthenticated: No public access to this resource., No ‘Authorization: Bearer’ header found. Either the client didn’t send one, or the server is mis-configured, Username or password was incorrect

Any help?
Thanks a lot