Issue with automatic closing of hamburger-menu on mobile devices and tablets

I am writing to request your assistance with an issue on the website https://schooldance.webtm.ru/, which is built on CMS Joomla using the Gridbox component.

Description of the Problem:
When accessing the website on mobile devices or tablets, a user clicks the hamburger menu, selects a menu item, but the menu does not close automatically after selection. This creates a poor user experience, as visitors must manually close the menu to continue interacting with the site.

Steps to Reproduce:
Open the website on a mobile device or tablet.
Tap the hamburger menu icon.
Select any menu item.
Observe that the menu remains open and does not close automatically.

Expected Behavior:
The hamburger menu should close automatically after a menu item is selected.

Video
https://www.awesomescreenshot.com/video/47144857?key=1d1e462a505f665b5e4a8e8aff634c26

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