I've been working on a branch of a GitHub enterprise repository for a few weeks now, (and having no problem making commits/clones, etc.).
However, my GitHub has suddenly broken, and I cannot make any commits, changes, or even clone a repository. I have tried deleting and reinstalling GitHub, I have tried deleting my local repository and making a new clone, but I can't even clone the repository as I get the following error (Note: I had to remove the server URL and repo name for privacy):
fatal: unable to access 'https://SERVERURLHERE/SUBGROUPHERE/REPONAMEHERE.git/':
schannel: CertGetCertificateChain trust error CERT_TRUST_IS_PARTIAL_CHAIN
I had the same trouble. It solved my problem, to use the normal git command line instead of Github-Desktop