Ok, just for you I tested the front end. Trying to upload images results in an HTTP error. It disappeared so quickly that I can't get the actual error message.
Also clicking on albums results in a white screen. But that maybe because I'm also experimenting with the BuddyPress Album plugin which shares the same URL. Ok, I disabled the BuddyPress Album via SFTP and now the Album button is working. So I guess you can't use both. Which is fine, your plugin provides more options. But I still can't access the back end or upload files.