So I used Acronis True Image for the first time. And as I was backing up the local drive on my laptop to an external hard drive, there was an error. The backup failed, but now, my external hard drive doesn't work. Whenever I try to access it I get the following error message: G:\ drive not accessible The drive is corrupted and unreadable. Is this fixable? I've never had this happen before until the first time I ran this program.