Dear Ashotosh,
again same error, after done according to your suggested.
also past here log file that may be more help full to understand the error.
Feb 1, 2014 11:34:07 AM [Info ]: Start service for instance 50 on host nlsolman ...
Feb 1, 2014 11:34:07 AM [Info ]: Process ID 39, name sapstartsrv has been started.
Feb 1, 2014 11:34:07 AM [Info ]: Command line: /usr/sap/NLS/DVEBMGS50/exe/sapstartsrv pf=/usr/sap/NLS/SYS/profile/START_DVEBMGS50_nlsolman -D
Feb 1, 2014 11:34:07 AM [Info ]: Standard out: /usr/sap/NLS/SUM/sdt/log/SUM/INSTALL_SERVICE_50_13.OUT
Feb 1, 2014 11:34:07 AM [Info ]: Process ID 39 has been started.
Feb 1, 2014 11:34:07 AM [Info ]: Waiting for process ID 39, name sapstartsrv to finish.
Feb 1, 2014 11:34:07 AM [Info ]: Process ID 39, name sapstartsrv has been finished, exit code 0.
Feb 1, 2014 11:34:07 AM [Info ]: Wait for service for instance 50 on host nlsolman to start...
Feb 1, 2014 11:34:09 AM [Info ]: Setting the credentials for user nlsadm and a password.
Feb 1, 2014 11:34:09 AM [Info ]: Setting the service timeout to 300 s.
Feb 1, 2014 11:34:09 AM [Info ]: Service for instance 50 on host nlsolman has been started.
Feb 1, 2014 11:34:09 AM [Info ]: Starting instance number 50 on host nlsolman with timeout of 7200 seconds.
Feb 1, 2014 11:34:10 AM [Info ]: Setting the credentials for user nlsadm and a password.
Feb 1, 2014 11:34:10 AM [Info ]: Setting the service timeout to 300 s.
Feb 1, 2014 11:34:10 AM [Info ]: All retrieved instances : 3
Feb 1, 2014 11:34:10 AM [Info ]: Correctly detected instance: 51 on host nlsolman
Feb 1, 2014 11:34:10 AM [Info ]: Correctly detected instance: 52 on host nlsolman
Feb 1, 2014 11:34:10 AM [Warning]: Detected instance hostName: nlsolman|instanceNumber: 50|state: null|featuresList: |instanceName: null|profilePath:
null|sapLocalHost: null|startProfile: null|osUserName: null|isSCS: false|isInitiallyConnectedInstance: false|isCentralInstance: false
has an empty feature list. It cannot be handled by SUM and will be ignored.
Feb 1, 2014 11:34:10 AM [Error ]: No instance was found in the system instances list with number 50 and host name nlsolman.
Feb 1, 2014 11:34:10 AM [Warning]: The instance could not be started. Will retry after a pause of 15 seconds.
Feb 1, 2014 11:34:25 AM [Info ]: All retrieved instances : 3
Feb 1, 2014 11:34:25 AM [Info ]: Correctly detected instance: 51 on host nlsolman
Feb 1, 2014 11:34:25 AM [Info ]: Correctly detected instance: 52 on host nlsolman
Feb 1, 2014 11:34:25 AM [Warning]: Detected instance hostName: nlsolman|instanceNumber: 50|state: null|featuresList: |instanceName: null|profilePath:
null|sapLocalHost: null|startProfile: null|osUserName: null|isSCS: false|isInitiallyConnectedInstance: false|isCentralInstance: false
has an empty feature list. It cannot be handled by SUM and will be ignored.
Feb 1, 2014 11:34:25 AM [Error ]: No instance was found in the system instances list with number 50 and host name nlsolman.
Feb 1, 2014 11:34:25 AM [Warning]: The instance could not be started. Will retry after a pause of 15 seconds.
Feb 1, 2014 11:34:40 AM [Info ]: All retrieved instances : 3
Feb 1, 2014 11:34:40 AM [Info ]: Correctly detected instance: 51 on host nlsolman
Feb 1, 2014 11:34:40 AM [Info ]: Correctly detected instance: 52 on host nlsolman
Feb 1, 2014 11:34:40 AM [Warning]: Detected instance hostName: nlsolman|instanceNumber: 50|state: null|featuresList: |instanceName: null|profilePath:
null|sapLocalHost: null|startProfile: null|osUserName: null|isSCS: false|isInitiallyConnectedInstance: false|isCentralInstance: false
has an empty feature list. It cannot be handled by SUM and will be ignored.
Feb 1, 2014 11:34:40 AM [Error ]: No instance was found in the system instances list with number 50 and host name nlsolman.
thanks.