Are you using software for Mac or Windows?  windows

Is there any more details to the error message?  "You can try using your back-up file instead.   You'll find instructinos on how to to open  your backup file in the link below.  Error: 102345"

the link connects to a "

We're sorry, the page you requested could not be found

"

i know where the backups are.  same result.

How did you perform the update? Automatic, it updated when i started.