page resize

Good Day guys
I love this plugins

but i have problem.

in category page it okay and fine
but when i click the some of my product my real header are gone and my
footer not works properly

please help me

url of catagory : http://lightworksstudio.net/games/

click some product to let you know my problem

Thanks you very much

https://ww.wp.xz.cn/plugins/wp-catalogue/