amandaveeenhuis,
Thanks for getting in touch and sorry to hear you’re having trouble here, but hopefully I can help. Can you try testing for conflicts (paying careful attention to the part about disabling template overrides), and let me know what you discover?
I’m also noticing that it looks like you have ‘SCRIPT_DEBUG’ set to ‘TRUE’ in your wp-config.php file. Is there a specific reason for this? I’m just curious if something has been modified, as I’m seeing Javascript errors on your site (screenshot).
Thanks! 🙂
-Casey-