Error message in Ghost 15

Can someone please help w/ the following error message in while backing up a drive using Ghost 15:

 

-Error E7C3000F: Device \\?\SymantecSnapshot1 cannot read 8240 sectors starting at LBA 83272.
--Error EBAB03F1: The request could not be performed because of an I/O device error.

Letme know if you need more info