display problems

Hello everyone,

The Kirki Customizer Framework plugin is used on my website.

This is also used to display image sliders on the starting page in the “Unsere Produkte” and “Unsere Partner” areas.

A few days ago I added new logos to “Our Partners” and suddenly no logo was displayed at all (not even the ones that were already there and were displayed before).

Backend screenshot: https://imgur.com/QWipcA8
Front end screenshot: https://imgur.com/kd0Z9aD

I just can’t find the error, hence the question of whether someone knows about it and can help me with this.

Many thanks in advance.

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