I am using B D plugin version 3.1 with BP default theme. All other features of BD plugin are working fine in my wordpress site,except "Send message to listing owner" and " email notifications". Whenever I hit send button (as a logged in user) in the contact form below each listing,I get a message that reads " There was a problem encountered. Your message has not been sent". As a guest user ,when I tried the same by filling up the name and e-mail fields of the contact form ,I got the same message.
What could be the problem?