Our customer portal isn't heavily used and we recently learned that customers are being blocked from logging in.  Our best guess is that the error is coming due to a change we made in the website that has somehow impacted the portal.  

Any suggestions on how to track down the access request? Odoo.sh 16

Error our customers see:

403: Forbidden

The page you were looking for could not be authorized.

Error message:

You are not allowed to access 'User' (res.users) records. 

This operation is allowed for the following groups:

​- Administration/Access Rights 

​- User types/Internal User 

Contact your administrator to request access if necessary.

Implicitly accessed through 'User' (res.users).