Slides only shown in Chrome

Hey, Good morning!
We are experiencing an issue with the Slideshow CK. It is only displayed in Google Chrome. In Safary, Firefoy and Mozilla it just keeps on loading forever.
I can't really tell why.
Does anyone have an idea on how to fix this?
This is the page with the issue:
www.ursachewirkung.com/3921-der-zen-weg-zur-befreiung

Thank you and have a great day!

Hi
the images are not available, check the 1st image returns a 404 error
www.ursachewirkung.com/images/stories/Bl...%20um%2009.01.49.png

may be that you know why ?
CEd

Hej!
Odd - I can see the picture...

may be a cache ? can you see it in Firefox ?
by my side it is a 404 error

please try with another image, by removing the space and points in the name/path (just use simple name with lower letters)

I cleared the cache and added a new picture. The new picture is displayed - weird. I will try to upload the pictures somewhere else, hoping that this will fix the issue.

Now it seems to be stuck on the first picture..