Could not start SDM Server - another Server may be running already

Hi

I have some problems with SDM after upgrade to SP16.

Right now i can't neither start it, nor change password..

it has an error but i don't understand it, because i have only one instance and the server is stopped.

I'm enclosing the error, please, if you have some ideas let me know.

Thank you.

Oct 10, 2006 12:34:29... Error: ERROR: Could not start SDM Server - another Server may be running already.

Oct 10, 2006 12:34:29... Error: Another SDM is running already for this SDM_HOME directory. Exiting. Throwable: com.sap.sdm.client_server.launch.SDMRunningException Throwable message: Another SDM instance is running on this host

Oct 10, 2006 12:34:29... Error: Could not start SDM. Processing error. Return code: 4