Norton Ghost 14.0 - Cannot create recovery points

In the last week I have begun to experience the subject problem.  I have been using Ghost for awhile without incident but now it fails when it can't create the recovery point.  I am using an external drive and attempting to backup 2 partitions on the internal drive.  OS is Win7.  Is there a log somewhere that will tell me what is failing or does anyone else have an idea of how to troubleshoot this.

 

Thank you in advance for any assitance.

 

Wayne