NPM install fails - bad github reference

[krewmarco]

23845 error /usr/local/bin/git ls-remote -h -t git://github.com/lenchvolodymyr/flat.git
23845 error
23845 error fatal: unable to connect to github.com:
23845 error github.com[0: 192.30.255.113]: errno=Operation timed out
23845 error
23845 error
23845 error exited with error code: 128
23846 verbose exit [ 1, true ]

To Reproduce
Steps to reproduce the behavior:

1. install the repo
2. type npm install

Expected behavior
should install packages