Images are missing from site

My website has been working just fine, but I just realized some of my images are not showing. I spoke with my developer and he said the issue is being caused by your plugin. I don’t want to disable it because that would defeat the purpose of what I’m trying to accomplish – can someone help me resolve this?

Below are the javascript errors I’m seeing using Google Chrome’s Inspect Tool.

JQMIGRATE: Migrate is installed, version 3.3.2
/wp-content/themes/2ndchance/assets/css/wp-content/themes/2ndchance/assets/img/call_icon.png:1 Failed to load resource: the server responded with a status of 404 ()
/wp-content/themes/2ndchance/assets/css/wp-content/themes/2ndchance/assets/images/prev.png:1 Failed to load resource: the server responded with a status of 404 ()
/wp-content/themes/2ndchance/assets/css/wp-content/themes/2ndchance/assets/css/font-awesome/fonts/fontawesome-webfont.woff2?v=4.5.0:1 Failed to load resource: the server responded with a status of 404 ()
/wp-content/themes/2ndchance/assets/css/wp-content/themes/2ndchance/assets/images/next.png:1 Failed to load resource: the server responded with a status of 404 ()
/wp-content/themes/2ndchance/assets/css/wp-content/themes/2ndchance/assets/img/slider-img2.png:1 Failed to load resource: the server responded with a status of 404 ()
/wp-content/themes/2ndchance/assets/css/wp-content/themes/2ndchance/assets/css/font-awesome/fonts/fontawesome-webfont.woff?v=4.5.0:1 Failed to load resource: the server responded with a status of 404 ()
/wp-content/themes/2ndchance/assets/css/wp-content/themes/2ndchance/assets/css/font-awesome/fonts/fontawesome-webfont.ttf?v=4.5.0:1 Failed to load resource: the server responded with a status of 404 ()
DevTools failed to load SourceMap: Could not load content for https://www.2ndchanceinsurance.com/wp-content/themes/2ndchance/assets/js/bootstrap-select.js.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE

Below are the only settings that are currently enabled.

1. Images > Show compression meta-box on an image’s dashboard media page.
2. Compression > Middle compression level

I’ve tried turning on Page Cache and Minify separately to see if those resolve the issue, but that doesn’t.

Really hopeful someone can help me out here. Thanks!

The page I need help with: [log in to see the link]