get app settings before accessing it (#32499)

mandayejs/mandaye/views.py

@@ -136,6 +136,7 @@ def dissociate(request, *args, **kwargs):
         c_user = UserCredentials.objects.get(user__username=request.user.username)
         c_user.delete()
         logger.debug("{} dissacioted".format(c_user.user.username))
+        app_settings = get_app_settings()
         return HttpResponseRedirect(
             request.META.get(
                 'HTTP_REFERER', app_settings.SITE_LOGIN_PATH)