title: Why Facebook application id suddenly become invalid?
body: <p>First of all I'm sure that my fb app id is valid because users can log in my Android app using facebook credentials until some days ago (I think it's before Feb break change).</p>
  
  <p>Recently new users cannot log in my Android app using facebook any more because facebook keep saying that my fb app invalid (Error is: <code>Invalid application fb-app-id</code>) BUT <code>old users</code> who already authorized my Android app for accessing their info can still log in using facebook. (Old users can still login to my app using facebook credentials  but new users cannot)</p>
  
  <p>Does anyone know why this happen to my facebook app and how to fix it?</p>
  
  <p>Edit: When access to <a href="https://graph.facebook.com/facebook-app-id" rel="noreferrer">https://graph.facebook.com/facebook-app-id</a> I get this error</p>
  
  <pre><code>{
  "error": {
    "message": "Unsupported get request.",
    "type": "GraphMethodException",
    "code": 100
      }
     }
  </code></pre>
  
  <p>Thanks you.</p>