Self-Hosted Pritunl Enterprise auth with Google SSO

We have a Self-Hosted Pritunl Enterprise, and trying to configure Google SSO with our GSuit Workspace.
Followed Pritunl docs for the configuration but it is redirecting to auth[dot]pritunl[dot]com and pritunl.[dot]om whereas our domain is different.

What could be the issue and why it is redirecting to pritunl[dot]com and auth[dot]pritunl[dot]com.

The Google single sign-on uses the Pritunl Oauth application and is handled through Pritunl authentication servers. The Google API keys are used locally on the server to retrieve the users groups from the Google Workspace admin API.

For additional security Duo could be used a secondary provider or device authentication.

What should be the Google Groups for the auth. I am getting user.mismatch error after the SSO. and how to access Pritunl Dashboard after Google SSO.