weapons in DarkRP give errors and no sound

Hello, I tried to add a custom weapon pack to my DarkRP server but when I spawn them in using Q most don’t even work and some of them shoot but give no sound and I get alot of errors when people shoot. This is the error that keeps popping up in the console when someone shoots;

[ERROR] addons/darkrpmodification-master/lua/weapons/bobs_gun_base/shared.lua:203: attempt to index a nil value
1. CheckWeaponsAndAmmo - addons/darkrpmodification-master/lua/weapons/bobs_gun_base/shared.lua:203
2. unknown - addons/darkrpmodification-master/lua/weapons/bobs_gun_base/shared.lua:186

I put the sweps folder in addon and all the weapon_blabla in addons/darkrpmodification-master/lua/weapons. This is the file that the error is talking about: http://pastebin.com/P6fThjvg

Shouldn’t it be in customthings instead of weapons…