Hrishy,

What are the contents of
$ORACLE_HOME/opmn/logs/ons.log file
A: 07/08/29 16:39:30 [2] Connection 0,172.18.0.212,6202 message out of sync:
This is repeated 3-4 times.

ls -ltr $ORACLE_HOME/opmn/lib/lib*.so
A: there's only one file in this folder: ons.jar

$ORACLE_HOME/opmn/bin/opmnctl stopall
A: There's no such executable in this folder; only "ons"

Let me know if you can think of anything.

Thanks!
Suhas