diff --git a/library/calendar_sync.py b/library/calendar_sync.py
index 42e1145..561cafd 100644
--- a/library/calendar_sync.py
+++ b/library/calendar_sync.py
@@ -23,13 +23,11 @@ def connect_caldav(url, user=None, password=None, verify_ssl=True):
             password=password,
             ssl_verify_cert=verify_ssl
         )
-        # Kalender-URL in String umwandeln
         target_path = urlparse(url).path
         principal = client.principal()
-        
-        # Alle Kalender durchsuchen und URL als String vergleichen
+
         for calendar in principal.calendars():
-            if target_path in str(calendar.url):  # WICHTIG: URL in String konvertieren
+            if target_path in str(calendar.url):
                 return calendar
         raise Exception(f"Kalender mit Pfad '{target_path}' nicht gefunden")
     except Exception as e:
@@ -50,7 +48,7 @@ def sync_ics_to_caldav(module):
     )
 
     existing_events = {
-        event.icalendar_component.uid.value: event
+        str(event.icalendar_component.uid): event
         for event in target_cal.events()
     }
 
@@ -58,7 +56,7 @@ def sync_ics_to_caldav(module):
     results = {'added': [], 'updated': [], 'removed': []}
 
     for vevent in ics_events:
-        uid = str(vevent.uid.value)
+        uid = str(vevent.uid)
         ical_data = vevent.serialize()
 
         if uid not in existing_events:
@@ -72,7 +70,8 @@ def sync_ics_to_caldav(module):
             changed = True
 
     if module.params['purge']:
-        for uid in set(existing_events.keys()) - {str(e.uid.value) for e in ics_events}:
+        current_uids = {str(e.uid) for e in ics_events}
+        for uid in set(existing_events.keys()) - current_uids:
             existing_events[uid].delete()
             results['removed'].append(uid)
             changed = True
@@ -92,7 +91,7 @@ def run_module():
     )
 
     module = AnsibleModule(argument_spec=module_args, supports_check_mode=False)
-    
+
     try:
         changed, results = sync_ics_to_caldav(module)
         module.exit_json(changed=changed, **results)
@@ -100,4 +99,4 @@ def run_module():
         module.fail_json(msg=str(e))
 
 if __name__ == '__main__':
-    run_module()
\ No newline at end of file
+    run_module()