All Files Error Out on iPad

I’m using Panels on iPad and Mac. On Mac it’s working fine, but on iPad, I set it to my “Comics” folder, and it has thumbnails for all the files. However, when I click on a comic, I get the pop-up error, “X Error Opening File.” The same files (cbr or cbz) open correctly in Comic Glass and Panels on Mac. I have upgraded Panels via IAP.

Thanks for your help.