Fix Aktivitätenstatus

gui/main_window.py

@@ -2966,10 +2966,16 @@ class MainWindow:
     def update_activity_status(self):
         """Periodic update of activity status"""
         from services.activity_sync import activity_service
+        from utils.logger import logger
+        
+        logger.debug("Periodic activity status update triggered")
         
         if activity_service.connected:
             # Update display with current activities
+            logger.debug(f"Updating activity display with {len(activity_service.activities)} activities")
             self.update_activity_display(activity_service.activities)
+        else:
+            logger.debug("Activity service not connected, skipping update")
         
         # Schedule next update
         self.root.after(5000, self.update_activity_status)  # Update every 5 seconds