Problem with weapons

Hi! I work on a role play Gmod, I use as a basis Gmod RP (version 1.3), so I would like to add weapons pleased with the rp, I create a folder in addons happy and I put the addon weapons I need. I check all, info.txt is good … But when I start a game with Gmod RP, guns are big ERROR and I can not draw! Can you help me please? Thank you!
Gmod RP:
The weapons I use:

Make sure you have the weapons properly installed on your system as well as the server.