title: Cannot send push notifications iOS using APN Auth Key
body: <p>I attempting to send a push notification to my react native project. When sending to single device (provided FCM Token), it thrown an error</p>
  
  <p><code>Invalid APNs certificate. Check the certificate in Settings.</code></p>
  
  <p>So my assumption is the notification message is even not yet sent to APN, which my device obviously will not gonna receive anything</p>
  
  <p>Please help</p>
  
  <p><strong>edit</strong></p>
  
  <p>I already uploaded my APN Authentication Key. Firebase docs says that I need to use either APN Authentication Key or APN Certificates</p>