How to login user without next-auth google provider?

System Information
  • Strapi Version: 4.3.4
  • Operating System: windows
  • Node Version: 16.13.1
  • Yarn Version: 1.22.19

don’t get me wrong. i mean:
“how to login a user that registered in with google provider, without google provider?”.

by this solution i used google provider successfully in my project and user can register and login with google provider:

register with google provider

but when i trying to login with strapi authentication and without google provider, I get a 400 error:

whereas users registered by strapi authentication have been successfullylogged in:

Could anyone tell me why this problem is happening and how I can fix it?