Unavailable?!?!?!

[Sungkoo]

I've been getting this message that says "Counterstrike Source is unavailable. Please try again at a later time"

Any idea why I'm getting this? I played it a day and a half ago and it worked fine, and all the servers seem to have ppl playing in them.

 

[oasismark]

Maybe Steam needs to update CSS.

Run the Play Games window, right click on CounterStrike Source.

Check in the properties and see if it's at 100%.

Or it may say 99%, needs updating.

 

[Deemo]

Your content server is busy, restart steam or give it like a day and itll switch your server