I have an SSIS package that fails intermittently since 2/18/2013(Monday) mt production Server. The SSIS package accesses excel files on a shared folder. SSIS package has been running successfully for 30 days until this week. SSIS package runs successfully 3 times then fails. Then run again SSIS package runs successful. Below is error:

Executed as user: SCONET\svc_GCCD ARFileLoad. Microsoft (R) SQL Server Execute Package Utility Version...