several times i have nort bneen able to accept dances in about this many. each time. i kept thinking it would resolve itself, it hasnt. please check into this for me.

You have been invited to dance! Click here to say yes/no! You have been invited to dance! Click here to say yes/no! You have been invited to dance! Click here to say yes/no! You have been invited to dance! Click here to say yes/no! You have been invited to dance! Click here to say yes/no! You have been invited to dance! Click here to say yes/no! You have been invited to dance! Click here to say yes/no! You have been invited to dance! Click here to say yes/no!

I have the same problem, whenever I click a dancing invite today, it says

Oh No! You haven't been invited to dance!

I am able to click the "your proposal has been accepted", though.

Edit 10.29am: It is working again for me, perhaps a short hiccup.