Hi there - I have experienced this problem before, but in those instances I was able to fix it through re-installing the template. (If I was supposed to post in previous threads, please let me know! Thank you!
, the main menu has disappeared from the menu bar at the top of the page, and the vertex "main menu" feature seems to be broken. I keep trying to save the intended menu - called "Main Menu" - as the main menu. Although I get a message that the style has been saved, the vertex back end keeps reverting to the "About Us" menu. (Note: I've added the bottom menu module as a way to navigate through this error for the time being. The bottom menu is what should be appearing in the main menu bar.)
This time, when I reinstalled the template, the problem actually changes for the worse. When I am using the reinstalled template, the menu shows up but the font functionality fails and other modules are missing from pages - basically, nothing looks right (screenshot attached).
Your help is very much appreciated! Thanks.