Hi,
Seems this is a little bug in the updated version of musicity v2.15, I read this topic https://www.gavick.com/forums/yourshop/remove-facebook-button-from-login-14179.html where it explains how to disable the facebook login from the login module.
As you will see in this screenshot:
The facebook login option is disable but still, see in this screenshot:
The login with facebook still appear, how can I remove it from the module?