I am using firebase in my iOS project for notifications. Instead of the APNS certificates, I am using auth keys (that can be downloaded only once). Now the problem is, the auth key file that has been uploaded on Firebase is lost as it was uploaded by some other developer an year ago. Now I need that auth key file to upload on CleverTap for notifications to work but as the file is lost, I am not able to do so.
Now I can't upload a new key on firebase as the existing users might not receive notifications. What option do I have to make it work so that the existing users continue receiving the notifications and I can make CleverTap notifications work?