I just tried to upload an image too, and got the same response, which is how I came across your post. It's very strange that there is not a way to manage our photos. Looks like the site has been up and down since May 2017. I won't continue to use it, and submitted an email via the 'Report Abuse' link because it's the only option for me to contact someone. I will ask them to delete my photos, and my account. The info says they will try to respond within 2 days. I'll try to remember to leave an update here.