fix

app/api/tickets.py

@@ -231,7 +231,7 @@ def before_update_object(self, ticket, data, view_kwargs):
         :param view_kwargs:
         :return:
         """
-        if ticket.type == 'paid' or data.get('type') == 'donation':
+        if ticket.type == 'paid' or ticket.type == 'donation':
             try:
                 event = (
                     db.session.query(Event)