Gmod not available!?

Hey guys, i just tryed to get on gmod today, it would load…but then all of the sudden before starting the game it would say Gmod is not available, please try again later. Any reason why it would do this?

It’s Steam…it does this all the time.

Delete you two .blobs in your steam or steamapps folder.
Restart Steam.

I did that, still says it isnt available D:

http://supportwiki.steampowered.com/wiki/Steam_Error:_This_game_is_currently_unavailable

One question, where is the “steam installation directory”?

If the issue persists, exit Steam and delete the ClientRegistry.blob file under the Steam installation directory (C:\Program Files\Valve\Steam\ or C:\Program Files\Steam\ by default) and restart Steam

I did everything the steam support said…i dont know what to do…

Then just wait it out.