Must have been a (temporary) server error

I don't know what the last test is about, but your solution is naive, so for really big numbers it will not work. You need to find a better way of computations instead of n1 ** n2.

Ahhh, frustrating. I have working code but I get the Unknown error message.

I tried everything suggested at this link https://github.com/Codewars/codewars.com/wiki/Error-messages:-Unknown-error

Any other suggestions?