does not appear to be a git repository fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists. code example

Example: ERROR: Repository not found. fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists.

This could happen if you have a reposotory that you deleted in your 
gitserver/provider so change the origin to a one that exists and the push