As of a few monyh ago, either Facebook or Google, will no longer support login for sites with unsecure protocol - suckers!
So the connect login is now deactivated on the site, and hashers are asked to use their legacy-login. Dont think about it - its just your hashname and old password.
Sometimes hashname is not working - If it consists of more than one word, or having stupid - non alphabetic letters - it is generally not working. Solution is to use Your email-address as username!