I am trying to install Appian 7.9 on WAS. getting below error. Can some one help

I am trying to install Appian 7.9 on WAS. getting below error. Can some one help me to understand where is the missing piece?

om.appiancorp.kougar.services.KougarServiceInvocationHandler - Error getting credentials for Administrator
com.appiancorp.kougar.driver.exceptions.SafeRetryException: Unable to acquire a Read connection. Safe to retry.
at com.appiancorp.kougar.driver.pooling.concurrent.Semaphore.acquireConnection(Semaphore.java:436)
at com.appiancorp.kougar.driver.pooling.concurrent.ConcurrentPools.getReadConnection(ConcurrentPools.java:140)
at com.appiancorp.kougar.driver.pooling.PoolManager.getReadConnection(PoolManager.java:313)
at com.appiancorp.kougar.driver.KougarConnection.getConnection(KougarConnection.java:140)
at com.appiancorp.kougar.driver.KougarConnection.call(KougarConnection.java:207)
at com.appiancorp.kougar.mapper.M...

OriginalPostID-153183

OriginalPostID-153183