fix crash

tournaments/views.py

@@ -741,7 +741,7 @@ def my_tournaments(request):
 
     def filter_user_tournaments(tournaments):
         return [t for t in tournaments if t.team_registrations.filter(
-            playerregistration__licence_id__startswith=stripped_license,
+            player_registrations__licence_id__startswith=stripped_license,
             walk_out=False
         ).exists()]