OPMN shutting down in weblogic 11g in windows 2012 server

Good Evening Experts,

Would request assistance.

We have Weblogic 11g running on Windows 2012 Server.

For the last 1 month, OPMN itself is shutting down automatically within a period of 4-5 days. Once OPMN is down, the Report server stops working and thus reports stop getting geberated in the production server.

While troubleshooting, when try to find out OPMN status, gets error :

\ORA\operainstance\bin>opmnctl status -l

opmnctl status : opmn is not running.

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Then forced to Restart the server and everything comes up automatically:

\ORA\operainstance\bin>opmnctl status -l

Processes in Instance: OPERAINST

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