It's not my model, try contacting RandomTeddyBear on Steam.

ive tried to disable the lights but its still stuck*

feedback to your kralle plus backpack:
first: it looks awesome and the details are stunning!

only contra point is: when you equipp unusuals, the effect is kinda stucked at the hat/misc as you can see here:
http://cloud.steampowered.com/ugc/55...4AE690119E9B6/

any idea why?