Uncaught type error fullwidth slideshow

Using fullwidth slideshow in a row (fluid, window height) throws an error:

Uncaught TypeError: d[c[(c.length - 1)]] is undefined
    run https://apifactur.de//templates/shaper_onepage/js/owl.carousel.min.js:1
        i jQuery
    update https://apifactur.de//templates/shaper_onepage/js/owl.carousel.min.js:1
    refresh https://apifactur.de//templates/shaper_onepage/js/owl.carousel.min.js:1
    initialize https://apifactur.de//templates/shaper_onepage/js/owl.carousel.min.js:1
    e https://apifactur.de//templates/shaper_onepage/js/owl.carousel.min.js:1
    owlCarousel https://apifactur.de//templates/shaper_onepage/js/owl.carousel.min.js:1

PageBuilder doesn't show the slideshow in frontend editing. Backend editing is possible but with no effect.

Thanks.