SSIS Package scheduled to execute through the job is getting failed

Hi There,

My package is failing sometimes (not always) as it is scheduled through a job. Below is the error information i got. Please help me on this.

DTS_E_OLEDBERROR.  An OLE DB error has occurred. Error code: 0x80004005. 
An OLE DB record is available.  Source: "Microsoft SQL Server Native Client 10.0"  Hresult: 0x80004005  Description: "Unspecified error".  End Error  Error: 2014-05-04 06:41:28.22     Code: 0xC004701A    
Source: DFT_Staging_ADW SSIS.Pipeline    
Description: component "SRC_OLE_ADW_Measures" (1) failed the pre-execute phase and returned error code 0xC0202009.  End Error  DTExec: The package execution returned DTSER_FAILURE (1).  Started:  5:07:54 AM  Finished: 6:41:28 AM  Elapsed:  5613.12 seconds.  The package execution failed.  The step failed.

Thanks,

Sandy