For god sakes help , source engine

[Fantah]

Hello ,
I ran into a error few days ago which hasn't been resolved til now. Every time I try to run a game called GARRYS MOD and try to join a server , after the loading I get a error witch closes my game.

------------------------------------------------------------
This is the error I get :

SteamIsAppSubcribed couldn't receive audio on line 76561197997052526

-------------------------------------------------------------

Now I read some issues similar to this online saying that they had to buy the game and it doesn't work because it was pirated. The problem with me is that I actually BOUGHT the game last year and all the sudden I get this engine error. My point is that I bought the game and it is not cracked.

But why is this happening to me ? How can I solve it ?

All my other steam games work fine.

I also have proof that I bought it.

This is my steam profile

As you can see in my game list on my profile they show all purchased games by me
[url]http://steamcommunity.com/id/Fanta321[/url]

I did infact buy the game.

[Cloudhunter]

Yeah, it seems you do own the game. The Garry's Mod anti piracy patch also detects ANY steam crack - even if you own gmod. Try uninstalling any steam cracks.