Single Page Refusing to Secure.

Trying to secure forms for my Mental Health Counseling company that clients will use to submit assessments.

These pages are functionally secure (note the padlock):

https://changeincorporated.org/mmlhi/
https://changeincorporated.org/cage/

But this page, which is identical, using the same “forms” plugin as the 2 above, with all of the same settings, won’t secure:

https://changeincorporated.org/mast-r/

Thoughts?

http://ww.wp.xz.cn/extend/plugins/wordpress-https/