diff --git a/src/main/java/org/olat/core/logging/activity/ThreadLocalUserActivityLogger.java b/src/main/java/org/olat/core/logging/activity/ThreadLocalUserActivityLogger.java
index d6975dca7a0df5475978659f6a37cb2f92e54a29..3a6dfe121fd2eed861b6c782c6c4b18797be4a19 100644
--- a/src/main/java/org/olat/core/logging/activity/ThreadLocalUserActivityLogger.java
+++ b/src/main/java/org/olat/core/logging/activity/ThreadLocalUserActivityLogger.java
@@ -147,7 +147,7 @@ public class ThreadLocalUserActivityLogger {
 	public static void log(ILoggingAction loggingAction, Class<?> callingClass, ILoggingResourceable... loggingResourceables) {
 		IUserActivityLogger logger = userActivityLogger_.get();
 		if (logger==null) {
-			log_.error("No ThreadLocal IUserActivityLogger set - cannot log to database: "+loggingAction.getActionVerb());
+			log_.debug("No ThreadLocal IUserActivityLogger set - cannot log to database: {}", loggingAction.getActionVerb());
 		} else {
 			logger.log(loggingAction, callingClass, loggingResourceables);
 		}
diff --git a/src/main/java/org/olat/modules/bigbluebutton/ui/BigBlueButtonAdminController.java b/src/main/java/org/olat/modules/bigbluebutton/ui/BigBlueButtonAdminController.java
index 4ac6053ca0e4f3ab50f7245b340f7b7744c08857..090b0e7cf704850d1ddcf445d97532eea9a896e7 100644
--- a/src/main/java/org/olat/modules/bigbluebutton/ui/BigBlueButtonAdminController.java
+++ b/src/main/java/org/olat/modules/bigbluebutton/ui/BigBlueButtonAdminController.java
@@ -145,13 +145,12 @@ public class BigBlueButtonAdminController extends BasicController implements Act
 	}
 	
 	private void doOpenConfiguration(UserRequest ureq) {
-		if(configCtrl == null) {
-			WindowControl bwControl = addToHistory(ureq, OresHelper.createOLATResourceableInstance("Configuration", 0l), null);
-			configCtrl = new BigBlueButtonConfigurationController(ureq, bwControl);
-			listenTo(configCtrl);
-		} else {
-			addToHistory(ureq, configCtrl);
-		}
+		removeAsListenerAndDispose(configCtrl);
+
+		WindowControl bwControl = addToHistory(ureq, OresHelper.createOLATResourceableInstance("Configuration", 0l), null);
+		configCtrl = new BigBlueButtonConfigurationController(ureq, bwControl);
+		listenTo(configCtrl);
+
 		mainVC.put("segmentCmp", configCtrl.getInitialComponent());
 	}