# Login does not work after reboot **URL:** \ **Category:** Self hosted Taiga\ **Created:** [March 1, 2023, 3:16pm UTC](https://community.taiga.io/t/login-does-not-work-after-reboot/826 "2023-03-01T15:16:33Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Jonas](https://dub1.discourse-cdn.com/flex017/user_avatar/community.taiga.io/jonas/32/698_2.png) [@Jonas](https://community.taiga.io/u/Jonas)\ **Post date:** [March 1, 2023, 3:16pm UTC](https://community.taiga.io/t/login-does-not-work-after-reboot/826/1 "2023-03-01T15:16:33Z")
Hello, I have changed the password of a user. After that I restarted Taiga once (runs in Docker). Now no user can log in and the following error message appears: Content-Type: text/plain; charset=“utf-8” MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [Django] ERROR (EXTERNAL IP): Internal Server Error: /api/v1/auth From: root@localhost To: [example@example.com](mailto:example@example.com) Date: Mon, 27 Feb 2023 10:51:10 -0000 Message-ID: [167749507039.42.13139045575238632615@8026e75c3e08](mailto:167749507039.42.13139045575238632615@8026e75c3e08) Internal Server Error: /api/v1/auth ## Exception Value: slugify\_uniquely() missing 1 required positional argument: ‘model’ Request information: USER: AnonymousUser ERROR:2023-02-27 10:51:10,379: Internal Server Error: /api/v1/auth Traceback (most recent call last): File “/opt/venv/lib/python3.7/site-packages/django/core/handlers/exception.py”, line 34, in inner response = get\_response(request) File “/opt/venv/lib/python3.7/site-packages/django/core/handlers/base.py”, line 115, in \_get\_response response = self.process\_exception\_by\_middleware(e, request) File “/opt/venv/lib/python3.7/site-packages/django/core/handlers/base.py”, line 113, in \_get\_response response = wrapped\_callback(request, \*callback\_args, \*\*callback\_kwargs) File “/taiga-back/taiga/base/api/viewsets.py”, line 95, in view return self.dispatch(request, \*args, \*\*kwargs) File “/opt/venv/lib/python3.7/site-packages/django/views/decorators/csrf.py”, line 54, in wrapped\_view return view\_func(\*args, \*\*kwargs) File “/taiga-back/taiga/base/api/views.py”, line 449, in dispatch response = self.handle\_exception(exc) File “/taiga-back/taiga/base/api/views.py”, line 447, in dispatch response = handler(request, \*args, \*\*kwargs) File “/taiga-back/taiga/auth/api.py”, line 77, in create data = auth\_plugins[login\_type]‘login\_func’ File “/opt/venv/lib/python3.7/site-packages/taiga\_contrib\_ldap\_auth\_ext/services.py”, line 82, in ldap\_login\_func username=username, email=email, full\_name=full\_name, password=password\_input) File “/usr/local/lib/python3.7/contextlib.py”, line 74, in inner return func(\*args, \*\*kwds) File “/opt/venv/lib/python3.7/site-packages/taiga\_contrib\_ldap\_auth\_ext/services.py”, line 100, in register\_or\_update username\_unique = SLUGIFY(username) TypeError: slugify\_uniquely() missing 1 required positional argument: ‘model’ ---
**Author:** ![daniel.herrero](https://dub1.discourse-cdn.com/flex017/user_avatar/community.taiga.io/daniel.herrero/32/301_2.png) [@daniel.herrero](https://community.taiga.io/u/daniel.herrero)\ **Post date:** [March 3, 2023, 8:28am UTC](https://community.taiga.io/t/login-does-not-work-after-reboot/826/2 "2023-03-03T08:28:30Z")
Hi @Jonas, Reviewing your logs it’s an unsupported LDAP extension the responsible of causing that exception when trying to log in into Taiga. Your logs… ```auto File “/opt/venv/lib/python3.7/site-packages/taiga_contrib_ldap_auth_ext/services.py”, line 100, in register_or_update username_unique = SLUGIFY(username) TypeError: slugify_uniquely() missing 1 required positional argument: ‘model’ ``` The [lines causing the problem](https://github.com/Monogramm/taiga-contrib-ldap-auth-ext/blob/master/taiga_contrib_ldap_auth_ext/services.py#L99) in the extension’s code … ```auto 30 SLUGIFY = getattr(settings, 'LDAP_MAP_USERNAME_TO_UID', slugify_uniquely) ... 99 if SLUGIFY: 100 username_unique = SLUGIFY(username) ``` Although Taiga doesn’t support that extension officially, we would recommend you to review the [**Configuration**](https://github.com/Monogramm/taiga-contrib-ldap-auth-ext#taiga-back) section in their documentation, as it seems something related to a missing variable value in your settings: ```auto # Function to map LDAP username to local DB user unique identifier. # Upon successful LDAP bind, will override returned username attribute # value. May result in unexpected failures if changed after the database # has been populated. # def _ldap_slugify(uid: str) -> str: # example: force lower-case #uid = uid.lower() return uid # To enable the function above, uncomment the line below to store the function in the variable #LDAP_MAP_USERNAME_TO_UID = _ldap_slugify` <========= IS IT UNCOMMENTED ? ``` You can either research more by yourself trying to review their settings requirements, or contact them directly in any of their repositories in order to get more help: > [madmath03 (Mathieu Brunot) · GitHub](https://github.com/madmath03) > [GitHub - Monogramm/docker-taiga: 🐳 Docker images for a full Taiga environment with additional plugins.](https://github.com/Monogramm/docker-taiga) > [GitHub - Monogramm/taiga-contrib-ldap-auth-ext: 🐍 Extended Taiga plugin for LDAP authentication](https://github.com/Monogramm/taiga-contrib-ldap-auth-ext) We hope you find the solution soon.