WOFF went wonky on me so I had to uninstall.
In the past Robert's back up program always worked, but I messed up something this time.

After a full install I created a pilot and was able to fly him.
Restored my previous pilots and they showed up. When I tried to fly any of them there was and override error saying WOFF didn't exist and I needed to reinstall WOFF.

Looks like I'm starting over with fresh pilots.

Oh I could write a book about how many times I've done this.

Can't comment on the backup program, but maybe a hard disk error needs fixing. Try checking disk for errors and maybe check in Windows Event viewer, Adminstrator, in the Windows logs, Application scan for errors.

PCs are finicky things at best, masked by pretty windows