Unable to clone respository from enterprise github to sourcetree

[Sam Kent]

when trying to clone my github repository from my Georgia tech githubto sourcetree , I get the notice that this is not a valid source path/URL. I have linked my github account and don't know what to do.

Any help would be greatly appreaciated   

the link I'm using from github is https://github.gatech.edu/<username>/<repo name>.git

with actual information inserted in the <>