I am confused by sign in changes in the forum

I used to be able to log in with my username moshiachnow. Today I tried to do that, but it kept prompting me to link my log in with a Google log in. It also had me pick a different user name. So now I have this extra log in, geulanow, and no idea how I can log into my previous account. I tried resetting the password, got a new password, but keep getting logged into geulanow instead.

What am I missing here?

Thanks.