Can't load images in admin section

First off I want to say thank you for an awesome plugin. We are using this plugin on 2 sites and on one it is working amazing. The other not so much. The issue is we can not load any images to the schedule. The timezone is set correctly and we have wordpress set to 24 hour time as mentioned in other posts.

You can add the shows just fine, but when you try and load images nothing happens, it saves the shows fine and everything else is working perfectly. We just can’t load the images into the schedule in the admin section.

https://www.ads-software.com/plugins/joan/