Avast Driver Updater "Cannot Continue" error

Installed “Avast Driver Updater”, and now cannot get it to work. Starts scan but when creating a restore point, it loads a pop-up message that says “Cannot Continue / Avast Driver Updater was unable to back up one or more of your drivers”. Not sure why this is happening, because I was able to use the “Backup” function to back the drivers up by themselves, so why is the program having problems with the Download/Update process? Any help regarding this would be greatly appreciated.

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