Build status column is empty after pushing build statuses from TeamCity using teamcity stash

[Izabela Wlodarska]

I am trying to setup TeamCity - Bitbucket integration to push build statuses to BB using Teamcity stash (https://github.com/mendhak/teamcity-stash).  After the setup the build status column in Bit bucket is still empty, I checked logs in TC and it tries to send the notification so I assume the URL I used may be incorrect. 

What should be the correct URL structure to add there if I do not use IP? Is it right:

http://bitbucket.org/username/projectname ?