My app was deleted and did not receive any notice?

When I tried to build it again, it return the error message

Error Your account got flagged by our internal fraud protection service, please contact [](

I tried to contact this mail

This is an unmonitored support mailbox. 

can someone tell me what happened

You’d have to wait for someone from Fly to chime in here.

In the meanwhile, if your app needs to be up and running urgently, then see: Restricted to shared-cpu-1x instances only - #2 by ignoramous