Unable to push to repo, 500 error

I just upgraded my SourceTree to Version 2.3.1 (69), and now when I am trying to push to my repo I get this 500 error:

Pushing to https://username@bitbucket.org/test_website/webiste.git\\
fatal: unable to access 'https://username@bitbucket.org/test_website/webiste.git': The requested URL returned error: 500

I was able to push yesterday with the older version, is there an easy way to roll back, is there a known issue with this SourceTree build