Go to the folder where your repository lives and edit .git/config (for me command line gedit .git/config) and change the url to the one you want.
With BitBucket, for me the URL that contains onaclov2000@bitbucket.org isn't right (not sure who that would be right for).
So for me the URL's look something like this (much more githubish).
https://bitbucket.org/onaclovtech/rpm.git
Good luck!