Crash upon exploring the world (Exception Ticking World)

[Btock]

Hi all,

Recently on my own modded server i have been exploring around. But coming across a crash that is, well, game stopping, as i pass a certain point on the game the server just crashes with the exception "Exception ticking world". I have spent most of Thursday figuring how to fix this and well the best place a thought to go is here, if you can help that would be excellent, thanks Joe

 

Crash Report: https://pastebin.com/c2N7U3ku

List of Mods: A few on the list have been removed https://pastebin.com/7RG7g21n

 

Also just to add

this only happens when we come across an obelisk form thaumcraft, or just pass that line that, well is invisible,

 

Thanks again,

Joe