How do you deal with a custom uploaded image Asset not loading in game?

I was trying to make a little loading screen that would switch between three images, however no matter how many times I re-upload or re-name the image asset the second image of the three throws the same error when I play it off the website. I've looked up assets not loading and I haven't found anything,

~https://gyazo.com/ec2ece2ee5d3a7abb8d4b7912f71d8eb *This is the error it gives me