The last time this happend I was told to send a text file. I took a prnt scrn of the information under the particular backup that said it failed and hope this is what you want.
This is the sentence I found in the log backup,"[10/5/2012 - 1:33:55 PM] Volume Shadow Copy Failed! vss_7_64.exe isn't running. Check the Log_VSS.txt file to view any errors."
For future reference, when something happens, please tell me how to send you the information you need to make it easier for you.
**Sorry for all the modifications but the last attachment is a copy of the log file on a word document..