I can't trade on TFM.
And my profile picturew won't change.
Like it has changed on this website but not on the game itself.
Help?

I have no idea why u can't trade
But..
It doesn't change on tfm for a while you just have to wait for your profile photo to change

maybe the person you're trying to trade blocked requests?
and relog and see if it shows up

@Mynerdyways No, they tried to trade with me, I cannot click the items.

If the other person already reached the limit of items you're trying to trade (80 of each), you can't give them any more of the particular items. Do you know if that's the case here?