I changed a function in lwjgl util to becompatible with LWJGL 3. I only changed it because
the function glMultMatrix was changed to glMultMatrixf. But it worked for any of my friends
so far so i don't think that's the problem. It says IllegalStateException... I can't say why

I looked up the source and it could be that a flag named forwardCompatibility is set.
EDIT: It seems you got a context of GL 4. In this version matrix operations are deprecated
and more or less removed. I think I can just alter the flag I mentioned above to be compatible
again. It would be nice if we could find a way to communicate better so I can fix the error with
you. I still cant understand why they do want to make everything harder by forcing people to use
shaders but ok...
EDIT: I managed to reproduce the error now. I gave GLFW the hint to work in compatibility mode,
but if your system supports this is another question. But I think it's supported for sure, since alot
programs wouldn't work anymore otherwise. For some reason your PC is the only one who set this
flag to true. Please download the next version, which I'll upload soon to see if this fix worked for you.