So sorry to see this happen.
I did a similar Performance dropping in a Kt88 without ceter pin, 1 pin off and smoke. Called Rogue audio tech dept, told me to look for obvious burnt parts.Found 3 resistors blown up, Replaced them myself and worked fine.
Sent it back to factory just for well being, Guess i fixed it fine as they found nothing wrong.
Id send it in to factory service..