I was helping a client with a similar problem. In his case, the mapped data drive didn't exist when the app was started. Something to check.

From the help.

C:\Softrak\dcwin\dcwin.exe /uSYS /pSYS /dC:\Softrak\Data /edat /rMYJOB /q

or

\\OurServer\Accounting\Softrak\DataCare\DataCare.exe /uSYS /pSYS /d\\OurServer\Accounting\Data /eDAT /rMYJOB /q

Confirm that you have all of those parameters. Note, the latter doesn't use mapped drives.