In the last 3 or 4 weeks, I can't push to remote repo.

Everytime I try to do that, I receive this error:

git push origin master -v
Pushing to https://gpasquino@bitbucket.org/gpasquino/feedaggregator.git\\
Password for 'https://gpasquino@bitbucket.org':\\
fatal: unable to access 'https://gpasquino@bitbucket.org/gpasquino/feedaggregator.git/': GnuTLS recv error (-9): A TLS packet with unexpected length was received.

I'm forced to use https auth method because I'm behind proxy.