Fix crash

tournaments/models/tournament.py

@@ -913,7 +913,7 @@ class TeamSummon:
 
 class TeamItem:
     def __init__(self, team_registration):
-        self.names = team_registration.team_names
+        self.names = team_registration.team_names()
         self.date = team_registration.local_call_date()
         self.weight = team_registration.weight
         self.initial_weight = team_registration.initial_weight()