GMOD Multiplayer doesn't work

[Mehmet]

Hello,

I've the game GMOD since 2013, It went good till now. I'm sorry, but when I boot up GMOD and try to join a server it gives me this message.
"This steam account does not own the game. Please login with the correct account".
Any ideas to what I can do to fix this?

[Rubat]

It's a bug with Steam servers, try relogging into your Steam account/restarting Steam/restarting your PC/changing download region in Steam settings.

[Mehmet]

I try all of them but It ain't working for me.

[Rubat]

Contact Steam Support.

[Nitronik]

link to your steam account?

[Mehmet]

[url]http://steamcommunity.com/id/blueshi/[/url]

[Mehmet]

Any help please..

[carlossc]

[QUOTE=Mehmet;46502790]Any help please..[/QUOTE]

Try redownloading garrysmod if it allows you to.

[Mehmet]

[QUOTE=carlossc;46504726]Try redownloading garrysmod if it allows you to.[/QUOTE]

Didn't work...