Delete completed workflows in MDM with CLIX

Hello Everyone

I trying to create a batch file to run a CLIX command (see below) but unfortunately it throws an error: "Error:0xffab4147, The specified MDM repository was not found on the server". Could someone please enlighten where the problem could be?

CLIX repRemoveCompletedWorkflowJobs MDM_Server: RepositoryXXX:DBUsername:DBPassword : 5: All

Thanks in advance

Best regards

Rumy