diff --git a/app/src/main/java/com/jens/automation2/AutomationService.java b/app/src/main/java/com/jens/automation2/AutomationService.java
index 5b25865a..a024003a 100644
--- a/app/src/main/java/com/jens/automation2/AutomationService.java
+++ b/app/src/main/java/com/jens/automation2/AutomationService.java
@@ -321,7 +321,9 @@ public class AutomationService extends Service implements OnInitListener
 		ReceiverCoordinator.applySettingsAndRules();
 
 		DateTimeListener.setOrResetAlarms();
-		CalendarReceiver.armOrRearmTimer();
+
+		if(Rule.isAnyRuleUsing(Trigger.Trigger_Enum.calendarEvent) && ActivityPermissions.isPermissionDeclaratedInManifest(AutomationService.getInstance(), Manifest.permission.READ_CALENDAR) && ActivityPermissions.havePermission(Manifest.permission.READ_CALENDAR, AutomationService.getInstance()))
+			CalendarReceiver.armOrRearmTimer();
 	}
 
 	@Override
diff --git a/app/src/main/java/com/jens/automation2/ReceiverCoordinator.java b/app/src/main/java/com/jens/automation2/ReceiverCoordinator.java
index 914b56d5..bfce2cf6 100644
--- a/app/src/main/java/com/jens/automation2/ReceiverCoordinator.java
+++ b/app/src/main/java/com/jens/automation2/ReceiverCoordinator.java
@@ -1,5 +1,6 @@
 package com.jens.automation2;
 
+import android.Manifest;
 import android.os.Build;
 import android.util.Log;
 
@@ -212,7 +213,7 @@ public class ReceiverCoordinator
         if(Rule.isAnyRuleUsing(Trigger.Trigger_Enum.screenState))
             ScreenStateReceiver.startScreenStateReceiver(AutomationService.getInstance());
 
-        if(Rule.isAnyRuleUsing(Trigger.Trigger_Enum.calendarEvent))
+        if(Rule.isAnyRuleUsing(Trigger.Trigger_Enum.calendarEvent) && ActivityPermissions.isPermissionDeclaratedInManifest(AutomationService.getInstance(), Manifest.permission.READ_CALENDAR) && ActivityPermissions.havePermission(Manifest.permission.READ_CALENDAR, AutomationService.getInstance()))
             CalendarReceiver.startCalendarReceiver(AutomationService.getInstance());
     }
 
@@ -469,7 +470,7 @@ public class ReceiverCoordinator
             }
         }
 
-        if(Rule.isAnyRuleUsing(Trigger.Trigger_Enum.calendarEvent))
+        if(Rule.isAnyRuleUsing(Trigger.Trigger_Enum.calendarEvent) && ActivityPermissions.isPermissionDeclaratedInManifest(AutomationService.getInstance(), Manifest.permission.READ_CALENDAR) && ActivityPermissions.havePermission(Manifest.permission.READ_CALENDAR, AutomationService.getInstance()))
         {
             if(!CalendarReceiver.getInstance().isListenerRunning())
                 CalendarReceiver.getInstance().startListener(AutomationService.getInstance());
diff --git a/fastlane/metadata/android/en-US/changelogs/142.txt b/fastlane/metadata/android/en-US/changelogs/142.txt
index d6db5f2d..bd975371 100644
--- a/fastlane/metadata/android/en-US/changelogs/142.txt
+++ b/fastlane/metadata/android/en-US/changelogs/142.txt
@@ -1,2 +1,3 @@
 * Fixed: Calendar trigger hidden from Play version
-* Fixed: Parameters not correctly supplied when starting other apps
\ No newline at end of file
+* Fixed: Parameters not correctly supplied when starting other apps
+* Fixed: Crash when exiting settings while service is running
\ No newline at end of file