mobile menu not working on ce2.4.5

[klartextmedia]

After an update to CE2.4.5 my mobile menu is not working on luma theme. It's allready discussed on  stackexchange, but there is no working solution. Problem is that subnav is not opening (example www.mallorca-fanshop.de).

https://magento.stackexchange.com/questions/360268/mobile-menu-not-working-in-mobile-view

https://github.com/magento/magento2/issues/35329#issuecomment-1139618176

Does anyone know's a working solution?

[theMageComp]

Hello @klartextmedia 

1. Start by clearing your Magento cache to ensure that any outdated or conflicting files are removed. You can do this by navigating to System > Cache Management in the Magento admin panel and clicking on the "Flush Magento Cache" button.

2. If you've made any customizations to the Luma theme files, try reverting those changes temporarily to see if the issue is resolved. Sometimes, conflicts or errors in custom code can cause problems with the mobile menu functionality.

3. Ensure that there are no JavaScript conflicts on your website that could be affecting the mobile menu functionality. Disable any third-party extensions or custom scripts and test if the mobile menu works properly. If the menu functions correctly after disabling certain components, you may need to investigate further or seek support from the extension developer.

4. Check if any theme files related to the mobile menu have been modified or overridden during the update process. Compare the relevant template files, JavaScript files, and CSS files with a clean version of the Luma theme. Make sure there are no syntax errors or missing code in these files.