[Plugin: Custom Contact Forms] Forms do not work

I have 06 forms in my site, just 01 runs. The other five are in the page and not on posts, is that this is the problem?
http://www.atelierdeimpressao.com.br/site/
Forms that do not work I was obliged to take the pages.
Thank you for your attention, Marcella

http://ww.wp.xz.cn/extend/plugins/custom-contact-forms/