"Errors were encountered in this item"
I received this error note when trying to open an e-book for school. It is an Adobe e-book, so I cannot open it with any other device/software. I also cannot open any of the non-school e-books that I have on Adobe Digital Editions (i.e. ones with no expiry date). I have rebooted my computer, I have uninstalled/reinstalled the program, and nothing works. My exam for this course is in a few weeks, and I need access to the e-book to study. I have contacted fellow students who have the e-book, and they are able to open it fine, so this is definitely an Adobe problem, not a publisher issue.
Please help ASAP.
EDIT: When investigating further, I clicked on item info for the e-book and it says "Unknown Permission Error".
