service servicedesk is not running

root@youcollage:~/ManageEngine/ServiceDesk/bin# tail -f /var/log/servicedesk-plus*

==> /var/log/servicedesk-plus.log <==

  JAVA_OPTS: -server -Xms128m -Xmx512m -XX:PermSize=64m -XX:MaxPermSize=128m  -Dprogram.name=run.sh -Djboss.server.type=com.adventnet.j2ee.deployment.system.AdventNetServerImpl -Djboss.deploy.localcopy=true -Djboss.boot.library.list=log4j-boot.jar,jboss-common.jar,jboss-system.jar,AdventNetDeploymentSystem.jar,commons-logging.jar -Dsdp.java.gc=false -Ddb.home=./../pgsql -Dserver.dir=/root/ManageEngine/ServiceDesk -Dorg.jboss.logging.Log4jService.catchSystemOut=false -Dorg.jboss.logging.Log4jService.catchSystemErr=false -Djava.util.logging.manager=com.adventnet.logging.LogManager -Djava.util.logging.config.file=/root/ManageEngine/ServiceDesk/server/default/conf/logging.xml -Djava.util.logging.config.class=com.adventnet.logging.LoggingScanner -Dlog.dir=/root/ManageEngine/ServiceDesk/server/default -Dtier-type=BE -Dtier-id=BE1 -Djava.library.path=/root/ManageEngine/ServiceDesk/lib/native -Dfile.encoding=UTF-8 -Duser.language=en -Duser.region=US -Djava.awt.headless=true

  CLASSPATH: /root/ManageEngine/ServiceDesk/bin/run.jar:./../jre/lib/tools.jar:/root/ManageEngine/ServiceDesk/lib/AdventNetLogging.jar:/root/ManageEngine/ServiceDesk/lib/AdventNetNPrevalent.jar:/root/ManageEngine/ServiceDesk/lib:/root/ManageEngine/ServiceDesk/lib/AdventNetUpdateManagerInstaller.jar

================================================================================

Server is starting. This may take a couple of minutes ...

Free edition...

==> /var/log/servicedesk-plus1.log <==

        at java.net.PlainSocketImpl.connect(Unknown Source)

        at java.net.SocksSocketImpl.connect(Unknown Source)

        at java.net.Socket.connect(Unknown Source)

        at java.net.Socket.connect(Unknown Source)

        at java.net.Socket.<init>(Unknown Source)

        at java.net.Socket.<init>(Unknown Source)

        at org.jnp.interfaces.TimedSocketFactory.createSocket(TimedSocketFactory.java:69)

        at org.jnp.interfaces.TimedSocketFactory.createSocket(TimedSocketFactory.java:62)

        at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:183)

        ... 5 more

==> /var/log/servicedesk-plus.log <==

Trying to start PostgresSQL server failed