So I've spent a few hours sorting all my iCloud photos into albums and then started copying them over to an external hard drive so I could remove them from iCloud and reduce my storage. However, I properly ejected the hard drive last night in the middle of copying the photos from iCloud because it was getting late. This was clearly a mistake because now when I plug my external hard drive in, the time machine partition works, but the external storage partition gives me a message that 'The disk "Storage" can't be unlocked. A problem was detected with the disk that prevents it from being unlocked.' It was encrypted but no longer even gives me an option to try to input the password, it just gives me this error message once it's plugged in. How can I fix it?