Some of the manipulation is easy and could be done by any user. In fairness, there is a solution, but it involved manipulation in Windows. Now, if you visit the Paragon site, you'll find frequently asked questions concerning this version and there is a section specific to failure to mount.
I have NEVER, EVER, put my BootCamp partition into hibernate mode. Was able to mount from there, but receive a message that my BootCamp partition was in hibernate mode so it would be dangerous to reboot. Went into System Preferences to access the Paragon Pane. Why? Because as soon as I upgraded and rebooted, I noticed that my BootCamp partition was NOT on the desktop. Does that infer that the event mentioned will happen to everyone? No! However, use of the software depends on your willingness to subject your Mac and, specifically, your BootCamp partition to substantial risk. Again, I'll just comment regarding my personal experience.