title: redux-firestore listener error: FirebaseError: Missing or insufficient permissions.?
body: <p>I am new to firebase and i have an error in console that i really don't know its source:</p>
  <pre><code>redux-firestore listener error: FirebaseError: Missing or insufficient permissions.
  </code></pre>
  <p>I don't know is this sufficient to explain my problem, but because i am new to <code>firebase</code> and <code>firestore</code> i can't explain more or bring some piece of code, everything was working fine but suddenly i got this error, what can be the source of that error?? how to fix it??</p>