VM Manager not able to start

Not able to start vmmansvc.

When I try to execute “.\vmman.bat -run” getting below error:

net start vmmansvc
The IBM VM Manager Data Collector service is starting.
The IBM VM Manager Data Collector service could not be started.

A service specific error occurred: 1.

More help is available by typing NET HELPMSG 3547.

Log initialization error: An exception occured during initalization, see stack trace below.
java.lang.NullPointerException
at java.util.Hashtable.put(Hashtable.java:506)
at java.util.Properties.setProperty(Properties.java:179)
at java.lang.System.setProperty(System.java:511)
at com.ibm.license.mgmt.datacollector.Runner.initialiseLogger(Runner.java:244)
at com.ibm.license.mgmt.datacollector.Runner.main(Runner.java:101)

I couldn’t find anything in log file.

Did anyone had similar kind of issue ?

Does the user executing vmmman.bat have permissions to access the log folder? Does the service account have permissions to access the log folder? Is something else locking the log file?

The user have access to logs. Doesn’t looking like it is locked.

Start with basics.
Is another instance running?
Try to move or rename the log files.
Try rebooting.
Other than that you’ll probably need to open a support ticket.

Thanks for your response. The issue was resolved after I reinstalled it manually.