diff --git a/app/src/main/java/org/opencord/aaa/impl/AaaManager.java b/app/src/main/java/org/opencord/aaa/impl/AaaManager.java
index c2e62eb..79fc22c 100644
--- a/app/src/main/java/org/opencord/aaa/impl/AaaManager.java
+++ b/app/src/main/java/org/opencord/aaa/impl/AaaManager.java
@@ -1101,10 +1101,14 @@
 
         private void flushStateMachineSession(String sessionId, String terminationReason) {
             StateMachine stateMachine = stateMachines.get(sessionId);
-            if (stateMachine != null) {
-                stateMachine.setSessionTerminateReason(terminationReason);
+            if (stateMachine == null) {
+                // No active AAA sessions for this UNI port
+                log.debug("No Active AAA Session found with Id {}", sessionId);
+                return;
             }
 
+            stateMachine.setSessionTerminateReason(terminationReason);
+
             //pushing captured machine stats to kafka
             AaaSupplicantMachineStats obj = aaaSupplicantStatsManager.getSupplicantStats(stateMachine);
             aaaSupplicantStatsManager.getMachineStatsDelegate()