Contact Form showing up as code … :(

http://constitutionleadership.org/join-us

I’m not a programmer, just wanted an easy to use contact form. This happened once before when all of my plugins were mysteriously deactivated. Today I notice this again, but my plugins are all active. Can you help a WordPress novice? Many thanks!

http://wordpress.org/extend/plugins/contact-form-7-to-database-extension/