Minimal working version

* Upgrade dependencies
* Fix ugettext
* Fix bad urls

club/models.py

@@ -26,7 +26,7 @@
 from django.db import models
 from django.core import validators
 from django.conf import settings
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 from django.core.exceptions import ValidationError, ObjectDoesNotExist
 from django.db import transaction
 from django.urls import reverse