Can not start up Opmanager

Can not start up Opmanager

Dear all OpManager Expertise,

I 've got a problem that the OPManager can not be startup. 

The error message in wrapper.log is following:

STATUS | wrapper  | 2017/07/21 09:09:01 | Launching a JVM...
INFO   | jvm 1    | 2017/07/21 09:09:01 | Error occurred during initialization of VM
INFO   | jvm 1    | 2017/07/21 09:09:01 | Could not reserve enough space for object heap
INFO   | jvm 1    | 2017/07/21 09:09:01 | Could not create the Java virtual machine.
ERROR  | wrapper  | 2017/07/21 09:09:01 | JVM exited while loading the application.
ERROR  | wrapper  | 2017/07/21 09:09:03 | The ManageEngine OpManager service is already running with status: START_PENDING
INFO   | wrapper  | 2017/07/21 09:09:05 | Waiting to start...
STATUS | wrapper  | 2017/07/21 09:09:06 | Launching a JVM...
INFO   | jvm 2    | 2017/07/21 09:09:06 | Error occurred during initialization of VM
INFO   | jvm 2    | 2017/07/21 09:09:06 | Could not reserve enough space for object heap
INFO   | jvm 2    | 2017/07/21 09:09:06 | Could not create the Java virtual machine.
ERROR  | wrapper  | 2017/07/21 09:09:06 | JVM exited while loading the application.
FATAL  | wrapper  | 2017/07/21 09:09:06 | There were 2 failed launches in a row, each lasting less than 300 seconds.  Giving up.
FATAL  | wrapper  | 2017/07/21 09:09:06 |   There may be a configuration problem: please check the logs.
STATUS | wrapper  | 2017/07/21 09:09:06 | <-- Wrapper Stopped



Any idea to solve it. 

Thanks in advance.

Raymond Cheung
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