Am trying to send a new PM.
Type away, hit submit and then all I get is a white screen??
Happens to me as well but if I hit re submit I am told that it has already being sent.
There is a bit of fixing going on behind the scenes, this might be part of the medicine.
There is an issue with the pm page. Your pm is actually sent, it just doesn't return you to the page correctly.
This should be working again - however there are still some underlying issues relating to tapatalk installation - which are being looked at.