I have all my SVNs downloaded to my addons folder and updated. I have the Stalker, General, Fallout, and even the Crussaria. But I cannot see the SRP Hazmat suit in game. OThers can see it, but all I get is an error. I tried exiting the game, updating the SVNs then entering it again. It didn't work. Any ideas?
First step I'd recommend is to wipe your cache.
Garrysmod/Garrysmod/Cache
Delete everything inside it, then re-launch your game to see if anything changes.