title: Why one of my ssh keys on github became grey(it was green) and doesn't work anymore?
body: <p>I have two github accounts and i hadn't used one of them for a while.</p>
  
  <p>Today i decided to add some refs to it, but in my github settings, ssh key became grey for some reason, so i couldn't push successfully.<br>
  I had to create new ssh key because of that.</p>
  
  <p>How do i avoid this problem in the future?</p>
  
  <pre><code>ERROR was: Permission to one-of-my-acc denied to Name.
  fatal: Could not read from remote repository.
  
  Please make sure you have the correct access rights
  and the repository exists.
  </code></pre>