Please check the theme settings there you will find an option to select a menu for mobile.
Once you select it the mobile menus will start appearing.
Regards
Guleria
Topic summary
A Shopify store owner reported that their mobile hamburger menu stopped working after a website update, displaying only a white box with no menu options.
Resolution Steps:
- The store was initially password-protected, preventing diagnosis
- Once access was granted, the issue was identified in the theme settings
- Solution: Navigate to theme settings and select a menu specifically for mobile display
Outcome: The issue was successfully resolved by configuring the mobile menu option in the theme settings. The hamburger menu now functions properly on mobile devices.