Hey sushiradio,
This looks like the issue we’ve had with the menu in version 4.1.2. Can you set the menu to have submenus open for now, until the fix is available? OR you could try to update to Enfold 4.2.
Here is a long thread about the issue:
https://kriesi.at/support/topic/sub-menu-do-not-appear-in-mobile-menu-since-4-1/#post-823575
If you need further assistance please let us know.
Best regards,
Victoria