Nested panicking on missing actor

[RedKinda]

I have a simple test to start up and stop my system. At one point, I started getting thread panicked while panicking. aborting. error. I tracked it back to me forgetting to register one of factories for sharding with .with_actor. Not sure if this is worth even pursuing but a nicer error message would probably be a good idea 😄

Trace logs here but they don't seem very related