You should check your items.cfg notepad file. Make sure it has the same coding as mine, then compare yours and see if anything's missing / changed. If that doesn't work, try reinstalling your item pack.
[Spikey Bracelet L]
mesh=bracelet6L.mesh
material=collarMat
bone=arm4.L
offset_f=0 0 0
rotation_f=0 0 0
offset_c=0 0 0
rotation_c=0 0 0
[Spikey Bracelet R]
mesh=bracelet6R.mesh
material=collarMat
bone=arm4.R
offset_f=0 0 0
rotation_f=0 0 0
offset_c=0 0 0
rotation_c=0 0 0
[Spikey Collar]
mesh=collar3.mesh
material=collarMat
bone=neck2
offset_f=0 0 .5
rotation_f=0 0 0
offset_c=0 .2 .3
rotation_c=0 0 0
^ That's the coding.