Fix crash

tournaments/views.py

@@ -393,12 +393,16 @@ def event(request, event_id):
     else:
         name = 'Événement'
 
+    first_title = ''
+    if event.club:
+        first_title = event.club.name
+
     return render(
         request,
         "tournaments/tournaments_list.html",
         {
             'tournaments': tournaments,
-            'first_title': event.club.name,
+            'first_title': first_title,
             'second_title': name,
             'head_title': name,
             'first_tournament_prog_url': first_tournament_prog_url,