crash the server world
http://pastebin.com/vzdv33eB

I don't think the is my issue, why would ender io be trying to cast my connector to there shit.. report it to ender io and see what they say

Yes, I think you are correct a problem of a different kind.
the server does not show the entire log.
You can close the issues
problem indirectly related to RFTools

Okay hope you can get it sorted