diff --git a/changelog.html b/changelog.html
index b86d7c61d..23f1bd66d 100644
--- a/changelog.html
+++ b/changelog.html
@@ -48,6 +48,7 @@ <h1>
 <ul>
     <li>Requires Openfire 4.7.0</li>
     <li>[<a href='https://github.com/igniterealtime/openfire-monitoring-plugin/issues/125'>Issue #125</a>] - Combining keyword and date range makes search fail</li>
+    <li>[<a href='https://github.com/igniterealtime/openfire-monitoring-plugin/issues/162'>Issue #162</a>] - Admin console pages should not break when not all cluster nodes have (the same) version of the plugin loaded</li>
     <li>[<a href='https://github.com/igniterealtime/openfire-monitoring-plugin/issues/163'>Issue #163</a>] - Migrate Jive Globals to System Properties</li>
     <li>[<a href='https://github.com/igniterealtime/openfire-monitoring-plugin/issues/190'>Issue #190</a>] - Allow code-update to force a reindexation</li>
     <li>[<a href='https://github.com/igniterealtime/openfire-monitoring-plugin/issues/192'>Issue #192</a>] - Combining keyword and participant(s) makes search fail</li>
diff --git a/plugin.xml b/plugin.xml
index ca34f8f86..8243aa57f 100644
--- a/plugin.xml
+++ b/plugin.xml
@@ -6,7 +6,7 @@
     <description>Monitors conversations and statistics of the server.</description>
     <author>Ignite Realtime</author>
     <version>${project.version}</version>
-    <date>12/08/2021</date>
+    <date>12/23/2021</date>
     <minServerVersion>4.7.0</minServerVersion>
     <minJavaVersion>1.8</minJavaVersion>
     <databaseKey>monitoring</databaseKey>
diff --git a/src/java/org/jivesoftware/openfire/archive/ConversationManager.java b/src/java/org/jivesoftware/openfire/archive/ConversationManager.java
index f89d9af85..44bb260b8 100644
--- a/src/java/org/jivesoftware/openfire/archive/ConversationManager.java
+++ b/src/java/org/jivesoftware/openfire/archive/ConversationManager.java
@@ -567,7 +567,13 @@ public int getConversationCount() {
         if (ClusterManager.isSeniorClusterMember()) {
             return conversations.size();
         }
-        return CacheFactory.doSynchronousClusterTask(new GetConversationCountTask(), ClusterManager.getSeniorClusterMember().toByteArray());
+        final Integer count = CacheFactory.doSynchronousClusterTask(new GetConversationCountTask(), ClusterManager.getSeniorClusterMember().toByteArray());
+        if (count == null) {
+            Log.warn("Unable to obtain conversation count from senior cluster member. Is (the same version of) the Monitoring Plugin running there?");
+            return -1;
+        } else {
+            return count;
+        }
     }
 
     /**
@@ -621,14 +627,18 @@ public Collection<Conversation> getConversations() {
             Collection<String> conversationXmls = CacheFactory.doSynchronousClusterTask(new GetConversationsTask(), ClusterManager
                     .getSeniorClusterMember().toByteArray());
             Collection<Conversation> result = new ArrayList<>();
-            for (String conversationXml : conversationXmls) {
-                try {
-                    Log.debug("Interpreting conversation from: {}", conversationXml);
-                    final Conversation conversation = Conversation.fromXml(conversationXml);
-                    Log.debug("Interpreted conversation: {}", conversation);
-                    result.add(conversation);
-                } catch (IOException e) {
-                    Log.warn("Conversation could not be reconstructed from '{}' because of '{}'. This conversation is not included in the result set.", conversationXml, e.getMessage());
+            if (conversationXmls == null) {
+                Log.warn("Unable to obtain conversations from senior cluster member. Is (the same version of) the Monitoring Plugin running there?");
+            } else {
+                for (String conversationXml : conversationXmls) {
+                    try {
+                        Log.debug("Interpreting conversation from: {}", conversationXml);
+                        final Conversation conversation = Conversation.fromXml(conversationXml);
+                        Log.debug("Interpreted conversation: {}", conversation);
+                        result.add(conversation);
+                    } catch (IOException e) {
+                        Log.warn("Conversation could not be reconstructed from '{}' because of '{}'. This conversation is not included in the result set.", conversationXml, e.getMessage());
+                    }
                 }
             }
             return result;