Main Menu dont open second level

i think since the last update the main menu (second level) dont open. i have to click on the first level in another category, then it works like it should... i the console i dont see any error.
i use gridbox 2 from balbooa to build the site & menu.

soundmk.ch/en/products/shop

any idea?

Hello Michael,

The reason of issue maybe caused by the template. Please submit a new ticket to send me the super admin account to your site so I can help you to check and resolve it for you.

Hope to hear back from you soon.

Sincerely, Giang

ok, thanks you for the information
i send you the access...

Hello Michael,

The problem was resolved via ticket system. Please following up there if you need any other helps.

Sincerely, Giang