Issues with Main Menu - MoviePoster Theme

Hello-
I'm having a problem with the main menu in MoviePoster: submenus are not "dropping", or visible, on any other page expect for the home page. If you are in any other page and hover over the parent page to machete dropdown appear, it does not. Furthermore, if you where to go back to the home page from any other page, then the submenus also disappear from the home page.

The website is OrpheumTheater.org.

Please help! This is one of my most important clients and need to resolve this issue as soon as possible.

Thank you!
IMC

Hi!
Probably, this is caused by the work of your third-party plugins. Please, try to disable your plugins one by one to detect the problem. However, it is impossible to detect any problems on your website because of your modifications.