Yes, I have not been able to send for the last 3 or so hours. And questions are being asked on my items and not being dispayed.

 

Does it say that it can not send because the message/transaction is over 90 days old? That appears to be problem on the odd occasion where it selects a much previous message instead of the one that was just sent.

If you're having that issue in replying to someone's message, try creating a new message by clicking on their username and then 'Contact' which is to the right of the screen.