Problems Snap Slider

I had a Weblfow website developed by a Webflow Expert using custom code and swiper.js
The whole design is based on a scroll triggered snap effect that navigates users smoothly from one section to the next.

The problem is that often occur unwanted, incorrect behaviour like push-backs or skipping of sections as the snap is not working correctly. Especially the buttons in “Projects” section are effected badly as when the user is trying to click one he/she is being pushed to the section above.

The developer is unfortunately not willing to address the issue.
I only have basic Weblfow knowledge and cannot fix the problem myself.

Does anyone know what the problem might be?

Here is my site Read-Only: [LINK][1]
([how to share your site Read-Only link][2])Webflow - Nina Körber – User Experience & Product Innovation