Firebase console is broken, and senderID, all server keys are changed

Question

I created the Firebase application, created all the senderIDs and server key for Cloud Messaging. I tested and everything worked. That was last week.

This week I do more testing and get the error returned to my php script: { ["error"]=> string(13) "NotRegistered" }

I sign up back to Firebase, go to "Project Settings" - "Cloud Messages" and look at the BOTH server key and change the sender ID. In addition, the iOS-related section of the application simply rotates and rotates and never loads this section. I did not do anything. Is anyone else experiencing this? How can i fix this? I don’t even see the full server key ... and when I tried to associate the new senderID with my Play Store Developer application console, it made a mistake indicating "invalid senderID". Thus, I don’t even think that the new senderID and server keys will work ... but at the same time, the ones I used do not work either.