Upgrading from 7000 to 7600 , failed

in process of upgrading to 7600 from 7000 , patch failed on ManageEngine_ServiceDesk_Plus_7_5_0_SP-0_14_0.ppm ,

error in update manager .....

lib\AdventNetDeploymentSystem.jar server\default\lib\AuthenticationFramework.jar server\default\lib\AdventNetPersistence.jar server\default\lib\AdventNetDeploymentManager.jar lib\AdventNetUpdateManagerInstaller.jar_new lib\SDeskWmi.dll lib\ADAuth.dll thirdparty.html server\reinitializeDB.bat server\default\lib\commonsdputils.jar server\default\lib\SDUtils.jar server\default\conf\auth-conf.xml server\default\conf\buildInfo.xml server\default\conf\agent\agent.exe server\default\conf\update_conf.xml server\reinitializeDB.sh conf\update_conf.xml bin\setcommonenv.sh bin\setcommonenv.bat

---------------------

now im stuck, servicedesk is not restarting, i can start database individually

but when i try run.bat its giving following error :

Database creation failed. Stopping the Server. Please refer logs for more inform ation Press any key to continue . . .

---------

Please help system is down , Im trying the support form but its always giving error on image authentication no matter how many time i try.

Please help.

Thanks