BuddyPress.org

I recently activated buddypress onto a live vantage themed wordpress site.
When a person attempts to register they are redirected to the wordpress admin page.

Once they click register on the wordpress admin page, the register form is displayed.

However, after filling in the required information and clicking ‘complete signup’ they are given this message:

Warning: require_once(extras/class.html2text.php): failed to open stream: No such file or directory in /home/t2jstr5/public_html/wp-includes/class-phpmailer.php on line 2826

Fatal error: require_once(): Failed opening required ‘extras/class.html2text.php’ (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home/t2jstr5/public_html/wp-includes/class-phpmailer.php on line 2826

Anyone know how I can rid myself and potential new users of this problem?

Note: Allow ‘Anyone can register’ is activated.

Thank you in advance.