Sticky menu problems pages

Hi!
I am having problems with the sticky menu. The thing is that it is working very well on the front page but when I go to a new page, the menu is static, however on the options is put as sticky. The website is under construction so I cannot send the link yet. Any idea about what is happening?
Thanks again for this theme. It goes well with everything!

Hi,

If there is no header then the menu will be static, regardless of the fact that you chose sticky.

same problem, it was working before, but now its not, i have uninstalled all the plugins and also deleted their residual files, but nothing working. what to do?