Thank you for a great plugin. I have used it on several sites that I manage.
A few days ago it suddenly stopped working while I was setting it up on a new site, and I cannot figure out what went wrong.
When I click on the send or Submit button, it comes with an error "Error. Please try again."
I checked all my other sites and they also stopped working.
I am on a shared windows server, so I have no control on the server side.