Error Couldn't allocate volume, no disks available

I’m trying to launch a new app but ‘flyctl launch’ returns ‘Error Couldn’t allocate volume, no disks available (region: otp, size_gb: 50)’.
Command ‘flyctl deploy’ returns ‘WARN Failed to start remote builder heartbeat’.
Command ‘flyctl logs’ just hangs.
Command ‘flyctl doctor’ passes all except for ‘testing local Docker instance… Nope’.

Can someone help me?