I am new to identity governance v2.5 . I have installed the application on a windows server 2012 R2 in following order.
1.Install Tomcat and PostgreSQL exe file
2. installed OSP
3. Identity governance.exe

Following error i am recieving when i hit the URL(http://xxxx.xxx.x.xxx:8080)

Code:
Cannot contact authentication server to validate the user's authentication token.
and when i look into catalina then following error occurs

Code:
2017-12-13 23:17:42,927 [WARN] ISMDatabaseConfiguration Internal error
org.postgresql.util.PSQLException: ERROR: relation "ism_global_config" does not exist
  Position: 21
	at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2455)
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2155)
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:288)
	at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:430)
	at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:356)
	at org.postgresql.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:168)
	at org.postgresql.jdbc.PgPreparedStatement.executeQuery(PgPreparedStatement.java:116)
	at org.apache.tomcat.dbcp.dbcp2.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:82)
	at org.apache.tomcat.dbcp.dbcp2.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:82)
	at com.netiq.ism.config.provider.ISMDatabaseConfiguration.getProperty(ISMDatabaseConfiguration.java:228)
	at org.apache.commons.configuration.CombinedConfiguration.performReloadCheck(CombinedConfiguration.java:759)
	at org.apache.commons.configuration.CombinedConfiguration.fetchNodeList(CombinedConfiguration.java:736)
	at org.apache.commons.configuration.HierarchicalConfiguration.getProperty(HierarchicalConfiguration.java:344)
	at org.apache.commons.configuration.AbstractConfiguration.getStringArray(AbstractConfiguration.java:1075)
	at com.netiq.ism.config.impl.ConfigurationImpl.getStringArray(ConfigurationImpl.java:390)
	at com.netiq.cx.client.LocaleChooser.<init>(LocaleChooser.java:61)
	at com.netiq.cx.client.LocaleChooserFactory.getBestLocaleChooser(LocaleChooserFactory.java:45)
	at com.netiq.common.i18n.impl.BestLocaleChooserFilter.init(BestLocaleChooserFilter.java:175)
	at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:279)
	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:260)
	at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:105)
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4572)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5215)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:952)
	at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1823)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)