Unexpected error when processing request for service. Contact your administrator. (COR-10868) (COR-10869) in SAP DS 4.2 SP4 & SAP IS 4.2 SP7?

Hi Experts,

We are currently useing

SAP BusinessObjects BI Platform 4.2

Version: 14.2.0.1855

SAP Data Services 4.2 SP4

and SAP Information Steward 4.2 SP7.

When I login Information Steward and select any project it shows the following error,

Unexpected error when processing request for service. Contact your administrator. (COR-10868) (COR-10869).

I checked in CMC --> Application --> Information Steward --> View Data Services Server, it close automatically and re-start automatically.

error shows as below,

When try following SCN links not solved my issue,

https://scn.sap.com/thread/3778628

https://launchpad.support.sap.com/#/notes/0002299495.

Problem establishing connection to information steward (COR-10868)

Please share needful information.

Thanks,

Chandra Sekhar