Playing just 5 games receive the message with maximum game number

I only see 5 games in My Games inbox and when I want to find anothr game in Open Invites I receive the following mewssage: "You are currently playing the maximum of 6 concurrent games for non-subscribers. Remove this limit."
Please help me out.
Thanks

Your account stats have now been fixed. You can now start another game.

Thanks a lot!
Have a nice day!