diff --git a/src/main/java/edu/kit/ifv/mobitopp/actitopp/ActitoppPerson.java b/src/main/java/edu/kit/ifv/mobitopp/actitopp/ActitoppPerson.java
index c06a040..a1e55da 100644
--- a/src/main/java/edu/kit/ifv/mobitopp/actitopp/ActitoppPerson.java
+++ b/src/main/java/edu/kit/ifv/mobitopp/actitopp/ActitoppPerson.java
@@ -644,9 +644,9 @@ public void addJointActivityforConsideration(HActivity act){
 			if(HActivity.checkActivityOverlapping(act,tmpact))
 			{
 				activityconflict = true;
-				System.err.println("HH" + getHousehold().getHouseholdIndex() + "/P" + getPersIndex() + ": activity was not added as joint acticity due to conflict with existing activity!");
 				if (Configuration.debugenabled)
 				{
+					System.err.println("HH" + getHousehold().getHouseholdIndex() + "/P" + getPersIndex() + ": activity was not added as joint acticity due to conflict with existing activity!");
 					System.err.println("act to add: " + act);
 					System.err.println("existing act: " + tmpact);
 				}
diff --git a/src/main/java/edu/kit/ifv/mobitopp/actitopp/Configuration.java b/src/main/java/edu/kit/ifv/mobitopp/actitopp/Configuration.java
index b1ee7fd..11816e4 100644
--- a/src/main/java/edu/kit/ifv/mobitopp/actitopp/Configuration.java
+++ b/src/main/java/edu/kit/ifv/mobitopp/actitopp/Configuration.java
@@ -150,7 +150,7 @@ public class Configuration {
 		
 	// activity durations - categories - Lower Bounds
 	public static final int[] ACT_TIME_TIMECLASSES_LB = { 1, 15, 30, 60, 120, 180, 240, 300, 360, 420, 480, 540, 600, 660, 720 };
-	// activity durations - categoriesn - Upper Bounds
+	// activity durations - categories - Upper Bounds
 	public static final int[] ACT_TIME_TIMECLASSES_UB = { 14, 29, 59, 119, 179, 239, 299, 359, 419, 479, 539, 599, 659, 719, 1440 };
 	// activity durations - number of categories
 	public static final int NUMBER_OF_ACT_DURATION_CLASSES = ACT_TIME_TIMECLASSES_LB.length;
@@ -176,7 +176,7 @@ public class Configuration {
 	public static final int[] FIRST_TOUR_START_TIMECLASSES_LB = { 0, 120, 240, 360, 420, 480, 540, 600, 660, 780, 900, 960, 1020, 1080, 1200, 1320 };
 	// start time for first tour of the day  - Upper Bounds 
 	public static final int[] FIRST_TOUR_START_TIMECLASSES_UB = { 119, 239, 359, 419, 479, 539, 599, 659, 779, 899, 959, 1019, 1079, 1199, 1319, 1439 };
-	// start time for first tour of the day - nuber of categories
+	// start time for first tour of the day - number of categories
 	public static final int NUMBER_OF_FIRST_START_TIME_CLASSES = FIRST_TOUR_START_TIMECLASSES_LB.length;
 
 	
@@ -189,7 +189,7 @@ public class Configuration {
 	public static final int[] SECTHR_TOUR_START_TIMECLASSES_LB = { 0, 540, 660, 780, 840, 900, 960, 1020, 1080, 1140, 1200};
 	// start time for second and third tour of the day - Upper Bounds 
 	public static final int[] SECTHR_TOUR_START_TIMECLASSES_UB = { 539, 659, 779, 839, 899, 959, 1019, 1079, 1139, 1199, 1439};
-	// start time for second and third tour of the day - nuber of categories
+	// start time for second and third tour of the day - number of categories
 	public static final int NUMBER_OF_SECTHR_START_TIME_CLASSES = SECTHR_TOUR_START_TIMECLASSES_LB.length;
 
 	
diff --git a/src/main/java/edu/kit/ifv/mobitopp/actitopp/Coordinator.java b/src/main/java/edu/kit/ifv/mobitopp/actitopp/Coordinator.java
index 24353ad..1490eb1 100644
--- a/src/main/java/edu/kit/ifv/mobitopp/actitopp/Coordinator.java
+++ b/src/main/java/edu/kit/ifv/mobitopp/actitopp/Coordinator.java
@@ -798,7 +798,7 @@ private void placeJointActivitiesIntoPattern() throws InvalidPatternException
 	  	 */
 	  	if (possibleact.size()==0) 
 	  	{
-	  		System.err.println("Akt konnte nicht ersetzt werden! Schritt 4");
+	  		if (Configuration.debugenabled) System.err.println("Akt konnte nicht ersetzt werden! Schritt 4");
 	  		gemakt.removeJointParticipant(person);
 	  		break;
 	  	}
@@ -830,7 +830,7 @@ private void placeJointActivitiesIntoPattern() throws InvalidPatternException
 	  	 */
 	  	if (possibleact.size()==0) 
 	  	{
-	  		System.err.println("Akt konnte nicht ersetzt werden! Schritt 6");
+	  		if (Configuration.debugenabled) System.err.println("Akt konnte nicht ersetzt werden! Schritt 6");
 	  		gemakt.removeJointParticipant(person);
 	  		break;
 	  	}
@@ -902,7 +902,7 @@ private void placeJointActivitiesIntoPattern() throws InvalidPatternException
 	  	 */
 	  	if (possibleact.size()==0) 
 	  	{
-	  		System.err.println("Akt konnte nicht ersetzt werden! Schritt 9");
+	  		if (Configuration.debugenabled) System.err.println("Akt konnte nicht ersetzt werden! Schritt 9");
 	  		gemakt.removeJointParticipant(person);
 	  		break;
 	  	}
diff --git a/src/main/java/edu/kit/ifv/mobitopp/actitopp/HActivity.java b/src/main/java/edu/kit/ifv/mobitopp/actitopp/HActivity.java
index 30c62ce..be645e2 100644
--- a/src/main/java/edu/kit/ifv/mobitopp/actitopp/HActivity.java
+++ b/src/main/java/edu/kit/ifv/mobitopp/actitopp/HActivity.java
@@ -892,7 +892,7 @@ public void setJointParticipants(List<ActitoppPerson> gemJointParticipants) {
 	 */
 	public void addJointParticipant (ActitoppPerson person)
 	{
-			jointParticipants.add(person);
+		jointParticipants.add(person);
 	}