Shutting down internal server

[Arkturos]

Hi everybody,

at first I have to excuse my english because i´m from Germany but here is my Problem:

 

If I join my Survivalworld The Lauchner crashes. 

Last Action in this world was that I tried to destroy a Redwood Tree from the Mod "Natura" with my Lumberaxe from "Tinkers Construct"

Here is the Crash-Report

 

http://pastebin.com/ci93ML7p

 

Thanks for help.

[Munaus]

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