SAML not working

Hi All, very weird problem. I got Auth0 SAML working with OpenVPN cloud, or at least kinda.
I have 2 databases and the login only works with 1 of the 2 databases. Both databases have permissions to access the SAML application.

One of the databases is a Import Users to Auth0 database, the other database is nothing special. The nothing special database doesn’t seem to work for some reason and I don’t know why.

Can someone please help?

Also, the log says the following when trying to log in:

“description”: “Cannot read property ‘toString’ of undefined”,