I cannot seem to get it to recognize a repository, I am just getting the following error:

Failed to connect to repository : Error performing command: git ls-remote -h https://github.com/micdoodle8/Crossbow_Mod_2.git HEAD

I've tried many, many different repos and urls. I've tried removing the https and using http instead, I've pretty much tried everything in the book with no success. I am starting to believe that it's not the url I'm putting in, but a problem with the plugin.

Thanks in advance.

Edit: When installing the plugin, the installation bar freezes halfway through the Github Plugin install as seen in the attached image.