Using:

• Reliquary-1.2.251
• ThaumicTinkerer-2.5-1.7.10-424
• Forge: 1240

I equipta hunters gun and load up on ender ammo - I shoot and 2 sec laters the game crash and the server reboots.

Error below. I see also TT in it and not sure if it is either TT or Reliquary.

http://pastebin.com/x1PBC7Yr

Now this is on a server - when doing the same in an ofline world everything works fine and no game crash

That appears to be TT, I let nekosune know about it. It looks like an issue with the drops, the zombie was carrying a blood sword? I will leave this open until I can give you a better answer. :D

sweet tnx and keep up the great mod :-) love it !.

After digging around some more, neko discovered that the player var being passed in from the bullet code is null, so I'm going to need to figure out why EntityShotBase isn't passing a proper player var. This is the first time I've ever seen it fail.

the weird part is that it only causes issue on a server - offline world works fine without a game crash at all.

Interesting, that helps. I will check it out in local and see what I can figure out.

I encountered a similar error. http://pastebin.com/7VRmjaDC