title: Git: Pushing to repo error. (Error updating submodules)
body: <p>All of a sudden git stopped working on my (private) repo.</p>
  
  <p>I'm getting this error screen:</p>
  
  <p><img src="https://i.stack.imgur.com/JZ292.png" alt="enter image description here"></p>
  
  <p>I have checked the account on my github client (this is on OSX) and the login is OK.</p>
  
  <p>Any suggestions, on how to solve this ?</p>