If you've recently updated your Joomla site to version 3.8 you will notice that your main menu has disappeared. There was a class name change that stopped our Vertex menu from working. We have updated our patch to fix this issue and all of our templates and site shapers also are now running the latest version of Vertex version 4.2. If you need the patch for your website simply reinstall the latest patch here and main menu will show up again:
https://www.shape5.com/documentation/Vertex-Framework/Joomla-Specific/How-To-Patch-Vertex-In-Joomla-and-Changelog
https://www.shape5.com/documentation/Vertex-Framework/Joomla-Specific/How-To-Patch-Vertex-In-Joomla-and-Changelog