npm install fails due to git connection error

[MrsNickalo]

I'm trying to install the latest version of zingchart-angular (2.0.2) and I get this error whenever I try. When I try to go to the zingchart-constants on npm, the page is no longer found.
npm ERR! code 128
npm ERR! A git connection error occurred
npm ERR! command git --no-replace-objects ls-remote ssh://[email protected]/zingchart/zingchart-constants.git
npm ERR! ssh: connect to host github.com port 22: Connection timed out
npm ERR! fatal: Could not read from remote repository.
npm ERR!
npm ERR! Please make sure you have the correct access rights
npm ERR! and the repository exists.

I also tried just npm install with the zingchart-constants and that failed as well:
npm ERR! code ENOVERSIONS
npm ERR! No versions available for zingchart-constants