making pass tests

rowers/models.py

@@ -949,7 +949,7 @@ def check_teams_on_change(sender, **kwargs):
         #if instance.protrialexpires < datetime.date.today() and instance.plantrialexpires < datetime.date.today():
         for id in pk_set:
             team = Team.objects.get(id=id)
-            if not can_join_team(instance,team):
+            if not can_join_team(instance.user,team):
                 raise ValidationError(
                     "You cannot join a team led by a Pro, Free Coach Plan or Self-Coach user"
                 )