How to change my (Google) Auth0 account to a normal one?

Hi @Bart1329045

Welcome back to the Auth0 Community!

Thank you for posting your question; due to security concerns, we treat different ways of logging in as different entities, so your best bet is to transfer the ownership of a tenant from your Google login account to the database one. You can read more about that process here → Transferring ownership of a tenant

Thanks
Dawid