Carousel Custom Arrows don't show up in other Browsers than Safari

[Kappa]

Hi there,
I was looking into the issue with some recent posts here, but for some reason it happens that the custom set arrows for carousel don't show up in Chrome, Firefox or Opera.

Safari works just fine. I run the most recent Version of Laytheme and Carousel and have uploaded PNG files as arrows.

Any suggestions are much appreciated.

[mariusjopen]

Dear @Kappa
do you have a link to your website?

Best!

Marius

[Kappa]

This post is deleted!

[Kappa]

@mariusjopen It's http://lissywillberg.info/

Thanks for looking into it!