template.context_processors.i18n", Middleware in your MIDDLEWARE [https://docs.djangoproject.com/en/4.2/ref/settings/#std-setting-MIDDLEWARE] you’ll need django.middleware.locale.LocaleMiddleware [https://docs djangoproject.com/en/4.2/ref/middleware/#django.middleware.locale.LocaleMiddleware] - it’s not installed in Django projects by default. Also add: to the list. You can also add 'cms.middleware.utils.ApphookReloadMiddleware' "django:django.middleware.locale.LocaleMiddleware", # not installed by default "cms.middleware.user.CurrentUserMiddleware", "cms.middleware.page.CurrentPageMiddleware", "cms.middleware.toolbar.ToolbarMiddleware"