After theme installation or updating, the menu and some other modules disappeared.
- Turn off the “Disable all overrides” option on the “BO > Advanced parameters > Performance” page.
- Please check if the “Overriding default behaviors” module is properly installed. I can help you manually install it if it’s not properly installed, please send me your FTP access via the contact form below.
- If you are running your site on PrestaShop1.6, you may need to trigger the regeneration of the /cache/class_index.php file. This can be done simply by deleting the file.
For more help, please mail me from my profile page.