Please upgrade to 2.2 here.
The 2.0 and 2.1 branches are no longer being updated.
Sign in with Google forbidden
I've been trying out the Social Sign in plugins. So far, Facebook and Twitter work perfectly however Google does not.
When choosing to sign in, the familiar google sign in page appears, however, after entering my email address and password, I am faced with a 403 Forbidden page and my forum remains signed out. Any ideas?