Severe bug with Better Barrels and ProjectE

[R4ID3R]

Hello,

I encountered a bug when using a better barrel with a hopper upgrade (+facade) and an energy condenser (mk2 aswell):

When trying to get the items out of the energy condenser with the barrel the following error occurs:

crash-2016-02-14_10.28.20-server.txt

This error keeps coming and prevents the server from starting (it automatically restarts itself once it's done loading) and makes the world this was placed in completely unavailable.

The same error occurs when trying to reconstruct the same pattern in a singleplayer world (unable to load the world again once its placed).