Dropdown Menu Item Opens by Default in Mobile View

I am encountering an issue with the dropdown menu on my website in mobile view. The dropdown items appears to be opened by default when viewed on mobile devices. This behavior is not intended and affects the overall user experience. Here is link where I am facing issue:

Could you please assist in resolving this issue? I would like the dropdown items to remain closed until a user actively selects them.

I have also observed this issue on the demo theme at https://themes.wow-company.com/iknowledgebase/.

Thank you in advance for any help

The page I need help with: [log in to see the link]