Unable to Access or Restore Super Admin Privileges on FortiGate

I have the following problem:
The configuration was exported using a Read-only user account, so Super Admins are not visible, and I cannot log in as a Super Admin.
Since I can’t log in with a Super Admin account, I’m unable to make any configuration changes.

Is there any chance or option to either log in, create a Super Admin, or change this user to a Super Admin?
Or is the only option to reset the device and restore the configuration file?

Please help us with this issue — we can’t log in or make any changes.

#FortiGate