My site works nicely in the preview but not in the live published version

When I preview my site everything works like I want it to but when I publish it, there are some diffrences that I can’t seem to resolve. My buttons don’t work (anymore, they did at one point) and my dropdown won’t scale it’s width as it should. I see that more people had problems with this but I can’t seem to find a satisfying answer. My sandbox and live are the same, published site and preview are also the same and I use Google Chrome.

This is my live site: https://martvanderkruis.editorx.io/hetpaardenrusthuis/blank-1 I also believe some people from Wix can look in my sites as well? What should I post to get someone to look?

Thanks!

By the way, the buttons ‘behandeling’ and ‘opmerking’ should open lightboxes and the button ‘doe controle’ should open a container. The dropdown is to select which items are to show. So you should first select something (different then the provided choice, sorry working on that) to see anything

If you have a paid plan, you can request wix support for a call back. Usually their response time is < 5 mins. Good luck.
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