Addons Problem never seen before

So hello i have a new Problem i never seen anything with that on google or something and for me its new to

all my addons works but not the addons like 3d screens wire mod all that sweps stuff i think but all other addons i added work i just wanted to install a riot shield but it dont show up at weapons in the game all the stuff what i add at tools to

if someone can help me there would be really nice i installed the other stuff like wire mod and 3d screens how i installed normal addons when you need something just tell me i give you logs or something but in console nothing shows up with an error or anything

thank you already for your help

You install the “Sandbox/TTT Riot Shield” right? Gimme the link of that

Its not only riot shield wire mode and all the tools addons dont work to but yea

http://steamcommunity.com/sharedfiles/filedetails/?l=german&id=290282950 its this riot shield not that from you there but its not only the riot shield so character addons and other stuff work like printers but tools and that shield not

mhm

no one knows anything ??

How are you installing it?