Your first screenshot says instances not found, so you probably skipped the part where you make attributes.
Also, check your warnings.log for errors related to your pack.
I've spent quite a bit of time editing and setting up the Attributes, but for some reason now I can't get them to open, nothings happening when I attempt to open them, just a little popup flashes and disappears to fast for me to read anything. How would I go about making a new file, it's not giving me an option to.