Application Server Fails on boot up attempting to start REN Server

Hi all,

When I boot up Application Server using psadmin, it fails while start REN server:

......
exec PSANALYTICSRV -o ./LOGS/stdout -e ./LOGS/stderr -A -- -D TESTSERV -S PSANALYTICSRV :
        process id=29341 ... Started.
exec PSRENSRV -o ./LOGS/stdout -e ./LOGS/stderr -A -- -D TESTSERV -S PSRENSRV :
        CMDTUX_CAT:1685: ERROR: Application initialization failure

tmboot: CMDTUX_CAT:827: ERROR: Fatal error encountered; initiating user error handler
exec tmshutdown –qy

The error message logged in the log file PSRENSRV_0805.LOG is as follow:

----- Begin booting PSRENSRV -------------------------
PSRENSRV.29344 (0) [08/05/13 09:34:22](3) (NET.113): Client RenRequest service request succeeded
PSRENSRV.29344 (0) [08/05/13 09:34:22](3) (NET.113): Client RenRequest service request succeeded 
29344.467625728 [05/8月/2013 09:34:22](FATAL) nsmain: server will not run as root; must specify '-u username' paramete (162,2073)