1. Based on the logs you attached
Check if there is a temp folder under tomcat folder
C:\Program Files\Symantec\Symantec Endpoint Protection Manager\tomcat\temp\
If not then create one and then try starting the service of Symantec embedded database and SEPM.
2. However whenever you have issue starting the Symantec embedded database service
Go to C:\Program Files\Symantec\Symantec Endpoint Protection Manager\db folder and look for err.log
Send me this log and will tell you the exact reason why this is happening and also post the solution.
3. Another thing please mention what happened with the server when the issue occurred.
I mean a unexpected server reboot : that corrupts the database transaction log
Low disk space issue on the drive.
Looking forward to resolve this issue.