Expected Behavior

Ive right clicked the controller of the multiblock to change the mode of the machine from ore washer to chem wash

Current Behavior

After the RMB with screwdriver you'll get kicked with "Internal server error" message on screen

Steps to Reproduce (for bugs)

Make that multiblock, use screwdriver on controller

Context

Can't use mutliblock in second mode of work.

Game Environment

It happened on server Zeta, after last update .7.6a.dev

7.6adev.zip

Also include:

• Gregtech version: GTplusplus-DevTop-draknyte1-389
• IC2 version: IC2+Nei+Plugin+Version+1.7.10-1.2.2
• Java version: V8-update 181
• Operating System: W7-64bit

Misc Info

Check all that apply ([ ] -> [x] - use a lowercase x)

•    Using GT:NH/GT:New Horizons?
•    Single Player?
•    Multi Player?

crash-2019-09-10_00.43.29-server.txt