S3 Offload Images not Saving

I have the S3 Offload Lite plugin install along with my Upfront installation. However, when I try to save the image, it just stays on a loading page that says "saving image" and spins. Could you help me resolve? Is S3 Offload Lite compatible with Upfront? If you need to take a look at the site, I have provided access and you can check out the test site.