I saw several question on support page that you are locked out from your site because lost all the keys. So I make this post.
There are only 2 ways to recover access without disable/remove plugin, of course remove plugin will unlock you from your site, but if you install plugin again, you still will be locked.
If you have access to another admin account
You can use other admin account to edit the locked admin via users->edit and Disable 2 step verification
Don’t have access to any other admins
You will need access to database. Use phpMyAdmin and browse to your database
Then select *_usermeta table and click on Search on right side with meta_key=wp2sv_enabled
Then it will list all user who use wp2sv, clear value or delete entry on user you want to disable wordpress 2-step verification
Done! You can login to your account now!