on my homepage, revolution slider with the Jevelin theme does not load in IE11 you find under the menu item ‘Praxen’.
I switched to wordpress twenty-sixteen theme and it worked with and without all plugins switched on.
I hope you are well today and thank you for your question.
This can be a child theme issue used on your site so to confirm it just temporary use the Twenty Seventeen theme on your site. If everything works fine then it’s your site child theme issue.