Featured Slider Problem

Hey Catchbox community, I have a problem with the "featured Sliders". As you can see on my website, there is one Slider...but just one... I selected four sliders...but it is not working.. www.djk-heigenbruecken.de/wordpress The website just shows one slider...all the time...and i also cannot shift to the next by "klicking" What is wrong here?? Thanks a lot! Greetings from Germany Bastian