Hey not sure if this is on your end or IC2 but I get daily server crashes with logs like this:

https://paste.ee/p/UOeOp

If it's on IC2 side I'll report it to them too.

I'm using the prefab energy handler, so I don't know what is causing this...

Yup, I can Second this issue.
The sheer amount of console spam kills our testing server also :P

AFAIK this is an IC2 bug, but it might also be on my side. I'd have to talk to Player about this

Turns out this WAS an RS issue after all. Anyhow, it's fixed now :)