fix crash

tournaments/models/team_score.py

@@ -27,7 +27,10 @@ class TeamScore(models.Model):
         return names
 
     def scores(self):
+        if self.score:
             return [int(x) for x in self.score.split(',')]
+        else:
+            return []
 
     def scores_array(self):
         scores = []