My Contact Form Functions.php Bug

Hello,

Im having the issue where by my contact forms are not sending mail out.
Ive found the following help file:

http://kriesi.at/documentation/enfold/my-contact-form-is-not-sending-emails/

I have added the code to the end of the functions.php file however when i save and upload the file it breaks my website. I simply get a white / blank screen. Unless i remove the function im unable to get the site back up again.

Has the code / function in (http://kriesi.at/documentation/enfold/my-contact-form-is-not-sending-emails/) changed as a result of a new release? Im currently using the latest version of Enfold and WordPress.

Many Thanks

Mario