diff --git a/src/clear_bookings.py b/src/clear_bookings.py
index 95a4b02..5d2fab7 100644
--- a/src/clear_bookings.py
+++ b/src/clear_bookings.py
@@ -1,4 +1,5 @@
 import email.utils
+import json
 import os
 import re
 import smtplib
@@ -30,9 +31,6 @@ class DavEvent:
     organizer: str
     calendar: Calendar
     obj: CalendarObjectResource
-    is_cancelled: bool
-    is_recurring: bool
-    is_prioritized: bool
     missing_required_fields: list
 
     def __init__(self, event: CalendarObjectResource):
@@ -164,7 +162,7 @@ class DavEvent:
         :return:
         """
         self.obj.icalendar_component["status"] = "CANCELLED"
-        self.obj.save(no_create=True)
+        self.obj.save(no_create=True, increase_seqno=False)
 
     def serialize(self) -> dict[str, str | datetime | timedelta]:
         """
@@ -188,6 +186,28 @@ class DavEvent:
             "missing_required_fields": self.missing_required_fields,
         }
 
+    def dumps(self, indent=4, datetime_format="%Y-%m-%d %X") -> str:
+        """
+        Dump a json string with the event data.
+        :return: string with json data
+        """
+        return json.dumps({
+            "uid": self.uid,
+            "name": self.name,
+            "start": self.start.strftime(datetime_format),
+            "end": self.end.strftime(datetime_format),
+            "duration": self.duration.total_seconds(),
+            "created": self.created.strftime(datetime_format),
+            "status": self.status,
+            "organizer": self.organizer,
+            "calendar_id": self.calendar.id,
+            "calendar_name": self.calendar.name,
+            "is_cancelled": self.is_cancelled,
+            "is_recurring": self.is_recurring,
+            "is_prioritized": self.is_prioritized,
+            "missing_required_fields": self.missing_required_fields,
+        }, indent=indent)
+
     @staticmethod
     def _handle_date(date_value: datetime | date) -> datetime:
         """
@@ -195,10 +215,8 @@ class DavEvent:
         """
         if isinstance(date_value, datetime):
             date_value = date_value.astimezone(tz)
-        elif isinstance(date_value, date):
-            date_value = tz.localize(datetime.combine(date_value, datetime.min.time()))
         else:
-            raise ValueError(f"date_value must be a datetime or date object, {type(date_value)} given.")
+            date_value = tz.localize(datetime.combine(date_value, datetime.min.time()))
 
         return date_value
 
@@ -296,6 +314,8 @@ def clear(target_calendars: list, is_test: bool=False) -> dict:
 
         # Find overlapping events
         overlapping_events = find_overlapping_events(events)
+        overlapping_events_json = json.dumps([json.loads(o.get("event").dumps()) for _, o in overlapping_events.items()], indent=2)
+        print(f"Found overlapping events:\n{overlapping_events_json}")
 
         # Delete overlapping events and send emails to organizers
         for overlap in overlapping_events.values():