Happened to most of my sites.
When you go to edit the form I found that the Message Body and the Mail settings have all been cleared (empty fileds). I had to re-enter them all in again to get it working.
Happened to most of my sites.
When you go to edit the form I found that the Message Body and the Mail settings have all been cleared (empty fileds). I had to re-enter them all in again to get it working.