[Plugin: WordPress HTTPS (SSL)] Insecure Content Error

Hello,

I have been getting the “Insecure content” error when visiting our checkout page :

https://www.toltekservices.com/membership-checkout?level=1

This is the only page we have a problem on. I have the HTTPS plugin installed with the debug mode on and Suffusion theme running.

Could anyone give some insight?

Thank you,
Spencer

http://wordpress.org/extend/plugins/wordpress-https/