Site Logo Stuck – Can’t Replace It

Hello, I've been trying this free version of Fotografie Blocks and so far so good - except I went to chage my site logo and there's no option to upload/use a different image. I removed the image from my gallery hoping that would reset it, but now it just displays a blank block in it's place and I still cannot find where to set a new image. I tried the drop-down options where the block is used and I can change to Site Title or otherwise, but cannot replace it there either like any other normal image. I went under Styles - Blocks - Site Logo and it shows the blank block there with display options but I cannot for the life of me set a new image. How do I reset this? Its very frustrating right now... I would link to my page but still setting it up in maintenance mode. Can't see where I can upload a screen shot here either. Thanks, Jesse