Hi Sandip,
Faced similar issue, Adapting the Secure Key store Solved this issue.
As per your R3Trans File Log, i think the same should solve the .
Try to connect via secure store (DEFAULT) on connection 0 ... 244 0.198376
4 ETW000 [dbhdbsql.cpp,00000] *** ERROR => Connect to database failed, rc=1, rcSQL=591 594399 0.792775
4 ETW000 [ dev trc,00000] SQLCODE : 591 145 0.792920
4 ETW000 [ dev trc,00000] SQLERRTEXT : internal error: 50 0.792970
Regards,
Monica Bhaskar