Elementor problem

I have already installed “Crelly Slider” and he works correctly with Elementor. Today I was updated WordPress and after that, the slider is not working. He shows a background image, but all other images are not showed. If I open a page with Elementor, slider shows everything, but if I go to the site without Elementor he didn’t show other images except the background. I don’t know what to do, because, in Elementor and Elementor “preview page” option, everything is ok.