Hi Raghu,
Apologies for the delayed response.
From Portal administrator end, I would say that you need to check whether the system alias (SAP_ECC_HumanResource) maintained in your launchpad configuration is present on Portal or not?
If it is, then you might need to check with ESS/MSS consultant and change the location of this query.
Let me know in case you have any further queries.
Best Regards,
Rohit Singhal