Cannot never login to my wp-admin dashboard again

I was locked from logging in to my wp-admin dashboard after installing “Login With Google”.

Wordpress keeps telling me that my login credentials were invalid, and even after I reset my password, the same problem happened again and again.

I found my server provider to deactivate the plugin, but then it reactivated automatically, now I still could not log in to my wp-admin dashboard (same to all my admin users).