Why is the mobile drop-down menu in our Kagami theme not working?

[Culinair]

In our Kagami theme, the drop-down menu on our mobile website doesn't seem to work anymore. 

Our desktop menu works fine. But as you can see in the attached images, the mobile menu drop-down menu doesn't populate.

Anyone who knows how to fix this issue? 

This is our site: https://www.culi-n-air.nl/

[Zworthkey]

@Culinair 
Welcome to Shopify Community.
How may I help you?

Thank you.

[Culinair]

Hey Zworthkey,

Do you know how to fix the above issue? Was I clear in my explanation?

Thanks.

[paleie84]

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[paleie84]

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