Hey there,

I have a client crash when ever i try to login to my server.

Crash report: https://pastebin.com/EAnY2mbX

Kind regards
zISKo

Caused by: java.lang.NullPointerException
	at slimeknights.tconstruct.tools.logic.EquipmentChangeWatcher.attachCapability(EquipmentChangeWatcher.java:74) ~

Entities can have a null world for rendering purposes on the client.

TinkersConstruct does not appear to be aware of this.