Can no longer push to bitbucket from Github Desktop

I’ve been using Github Desktop to push my project to a bitbucket account.  Today, it wont’ do it.  It says “We were unable to authenticate ith  Please enter your username and password to try again.”

Which password does it want?  Bitbucket seems all tied in with Atlassian, but my Atlassian account/password doesn’t work.  There is a bitbucket ‘username’ in the bitbucket profile settings on,  but using that and my Atlassian password doesn’t work.  Also just using my Github account credentials doesn’t work.

So frustrating – anyone know how to get this working?  I logged into GitHub from my work computer the other day, maybe that is what screwed things up?