Ghost 12: Device \\.\SymantecSnapshot9 cannot read 8192 sectors starting at LBA 2017520. (CRC error)

Hi Community - my first posting.  Although Ghost reports this error, chkdsk reports no errors (I've run this multiple times).  Any thoughts on next steps?  It's been 2 months from my last backup and I'm a bit nervous (I have a 5 year old laptop).

 

Thanks!