cannot upload images using my iphone

I have the app, the option to load an image is visible, I am able to choose an image from my photo library but it will not load. I was able to load 2 or 3 images last Sunday, but haven't had much luck today. Is this problem related to what is happening to others on their computers?

Also, one of the images I successfully uploaded using the app on my phone is not displaying online on my desktop.