Trading problems.

[Bag of Donuts]

Every time I try to trade somebody, it always says they're already in a trade with another player. It says the same for whenever somebody tries to trade me as well. I'm not f2p so I have no idea what is going on. Is anyone else having these problems or know of a fix?

[Czarnicks]

Same thing happens to me. People say to allow steam guard to be online but it is and It's not working still :(

[SirDapper]

Accually theres another reason is when u leave a game while in trade or press shift+tab while in trade the trade will still be going on so you might want to double check before you claim this a proble. :D not trying to sound mean but helpful