swiper.jquery.min.js

You’ve provided both http and https urls but neither are showing that error in the console. The https has some mixed content warnings because the images are loaded via http but that’s all I see missing and no 404 on the browser console. Maybe you’ve fixed this and yet to update the thread yet?

Typically for 404 errors the first thing I check is make sure all the files are are there by unzipping a fresh copy of the target theme/plugin.