Mobile – Hamburger Menue not clickable anymore

Good Day All

I am using WordPress, Flatsome 3.16.0 and Woocommerce
All my plugins are updated and I tried to deactivate all the plugins
BUT I cant manage to fix the issue, once I try to check my website on an iphone ore ipad. once it opens, i see the menue but cant click it?
next to this menue there is a search icon and that works fine

any help is highly appreciated
best regards

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

 

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