Error when trying to approach the castle.

General Information

I play...
- [X] With a large modpack
- [ ] Only with CQR and it's dependencies
The issue occurs in...
- [ ] Singleplayer
- [X] Multiplayer
[X] I have searched for this or a similar issue before reporting and it was either (1) not previously reported, or (2) previously fixed and I'm having the same problem.
[X] I am using the latest version of the mod (all versions can be found on github under releases)
[X] I read through the FAQ and I could not find something helpful (FAQ)
[ ] I reproduced the bug without any other mod's except forge, cqr and it's dependencies
[ ] The game crashes because of this bug

Describe the bug In short, when I found a castle from your mod on my test world and approached it, I was thrown off the server with an error that is in the screenshot below. Every time I try to enter the server it is the same. When my friend also tried to approach this castle, the same thing happened and it was the same with another friend on another save with exactly the same castle. I did not observe such a problem in other structures. I can send you this world where the error occurs and the whole modpack. Just now I downloaded the world from the server where I found the problem and I launched it on single player and there is no such problem on single player.

To Reproduce Steps to reproduce the behavior: