So, its been about 5 days that I’ve been experiencing this. I start Garry’s Mod and none of my subscribed addons show up. None. And I have about 2 GB of addons. I tried unsubscribing and subscribing in the Workshop, but it didn’t work. Plus, when I try to install a new addon, it doesn’t work. I just press Install and nothing shows up on the screen, and nothing gets downloaded. I have tried everything; un-installing and re-installing GMod (3 times), Verifying Game Cache, running as administrator, and still no dice. Please, someone help me. I waste most of my time on GMod and I’m an admin of a server. So, if you have a solution (that even possibly) might work, please, notify me ASAP. :quagmire:
Thanks. I’ll try that now. And also, are you the actual Robotboy?
What do you mean “actual robotboy”? 
Like the guy who made the Hoverboards addon 
Not made, updated for GMod 13, but yes, I did that.
Also, it didn’t work :suicide:
Contact Steam support, it is a problem with Steam, not GMod. Other people who have this problem reported it also happens in L4D2.
Alright, thanks man. I contacted Steam Support and I’m waiting for a reply. :quagmire: