The item sheet does not have a filetype (it's ".1") - it should be .pdf. (It does open nicely after changing the extension to .pdf.)Delightful little adventure!
Ahh, I see what happened. Silly mistake on my part. It should be fixed now. Thanks for catching the mistake, and glad you enjoyed it!
it is not fixed. "item_sheet" is still missing PDF file extension
Ok, thought renaming it would fix it, but looks like that was not the case. I have reuploaded it so hopefully should resolve the issue now.