Yahzmin ♥♥ 4ever
Very glitchy day today. If you get that message, you can try copying your answer and canceling it. Then refresh the page. In all probability, your answer will BE there already, which is why you get that message, cause it's trying to double-post your answer. If your answer is NOT there, paste it, click Submit - and it should then work.
Anonymous
I've been getting the same error.