I just tried to create a repository (https://bitbucket.org/gregonomic/smallrna), and it is stuck in the "Creating repository: Please wait a moment while we create your repository." stage.
Have the same problem...
We had a server problem earlier, which we reported on: http://status.bitbucket.org/
I suspect your problem has resolved itself by now. If not, please let us know.
Thanks Charles - it's working now. Sorry I didn't check the status before logging the bug.