I'm also getting this. Cannot pull or push but can authenticate with SSH

    myrepo git:(fix/context-types-settings) gp
    ERROR: user:1234567:user
    fatal: Could not read from remote repository.

    myrepo git:(fix/context-types-settings) ssh -o ProxyCommand=none git@github.com
    PTY allocation request failed on channel 0
    Hi user! You've successfully authenticated, but GitHub does not provide shell access.
    Connection to github.com closed.

same