# Error 500 after upgrade v2.2.0.beta5 +175
**URL:** https://meta.discourse.org/t/error-500-after-upgrade-v2-2-0-beta5-175/104221
**Category:** Support
**Created:** [December 13, 2018, 9:35pm UTC](https://meta.discourse.org/t/error-500-after-upgrade-v2-2-0-beta5-175/104221 "2018-12-13T21:35:00Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@TroyaNO](https://meta.discourse.org/u/TroyaNO)
#### Post date: [December 13, 2018, 9:35pm UTC](https://meta.discourse.org/t/error-500-after-upgrade-v2-2-0-beta5-175/104221/1 "2018-12-13T21:35:00Z")
Hello everyone,
Since three months now, I moved my 13-year-old forum (with vBulletin) - to **Discourse - and I’m totally happy!** Until today everything worked fine and the few bugs that I had, just I solve with a new update via command line.
But until today, after updating on both tracks, users can not log in, **“Error Unknown”** appears.
And also cant’ enter the profile of users either because it shows an error page. 😟
These are logs that show me:
```plaintext
var/www/discourse/vendor/bundle/ruby/2.5.0/gems/activemodel-5.2.2/lib/active_model/attribute_methods.rb:430:in `method_missing'
/var/www/discourse/plugins/twitter-profile-link/plugin.rb:15:in `block (2 levels) in activate!'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/active_model_serializers-0.8.4/lib/active_model/serializer.rb:375:in `include?'
(eval):76:in `_fast_attributes'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/active_model_serializers-0.8.4/lib/active_model/serializer.rb:468:in `rescue in attributes'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/active_model_serializers-0.8.4/lib/active_model/serializer.rb:455:in `attributes'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/active_model_serializers-0.8.4/lib/active_model/serializer.rb:480:in `_serializable_hash'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/active_model_serializers-0.8.4/lib/active_model/serializer.rb:359:in `serializable_hash'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/active_model_serializers-0.8.4/lib/active_model/serializer.rb:343:in `as_json'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.2/lib/active_support/json/encoding.rb:35:in `encode'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.2/lib/active_support/json/encoding.rb:22:in `encode'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.2/lib/active_support/core_ext/object/json.rb:41:in `to_json'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/active_model_serializers-0.8.4/lib/active_model/serializer.rb:331:in `to_json'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/multi_json-1.13.1/lib/multi_json/adapters/oj.rb:40:in `dump'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/multi_json-1.13.1/lib/multi_json/adapters/oj.rb:40:in `dump'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/multi_json-1.13.1/lib/multi_json/adapter.rb:25:in `dump'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/multi_json-1.13.1/lib/multi_json.rb:139:in `dump'
/var/www/discourse/app/controllers/application_controller.rb:453:in `render_json_dump'
/var/www/discourse/app/controllers/users_controller.rb:88:in `block (2 levels) in show'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_controller/metal/mime_responds.rb:203:in `respond_to'
/var/www/discourse/app/controllers/users_controller.rb:80:in `show'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/abstract_controller/base.rb:194:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_controller/metal/rendering.rb:30:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/abstract_controller/callbacks.rb:42:in `block in process_action'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.2/lib/active_support/callbacks.rb:132:in `run_callbacks'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/abstract_controller/callbacks.rb:41:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_controller/metal/rescue.rb:22:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_controller/metal/instrumentation.rb:34:in `block in process_action'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.2/lib/active_support/notifications.rb:168:in `block in instrument'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.2/lib/active_support/notifications/instrumenter.rb:23:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.2/lib/active_support/notifications.rb:168:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_controller/metal/instrumentation.rb:32:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_controller/metal/params_wrapper.rb:256:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.2/lib/active_record/railties/controller_runtime.rb:24:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/abstract_controller/base.rb:134:in `process'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionview-5.2.2/lib/action_view/rendering.rb:32:in `process'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/rack-mini-profiler-1.0.1/lib/mini_profiler/profiling_methods.rb:78:in `block in profile_method'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_controller/metal.rb:191:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_controller/metal.rb:252:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_dispatch/routing/route_set.rb:52:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_dispatch/routing/route_set.rb:34:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_dispatch/journey/router.rb:52:in `block in serve'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_dispatch/journey/router.rb:35:in `each'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_dispatch/journey/router.rb:35:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_dispatch/routing/route_set.rb:840:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/rack-protection-2.0.3/lib/rack/protection/frame_options.rb:31:in `call'
/var/www/discourse/lib/middleware/omniauth_bypass_middleware.rb:32:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/rack-2.0.6/lib/rack/tempfile_reaper.rb:15:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/rack-2.0.6/lib/rack/conditional_get.rb:25:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/rack-2.0.6/lib/rack/head.rb:12:in `call'
/var/www/discourse/lib/content_security_policy/middleware.rb:12:in `call'
/var/www/discourse/lib/middleware/anonymous_cache.rb:216:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/rack-2.0.6/lib/rack/session/abstract/id.rb:232:in `context'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/rack-2.0.6/lib/rack/session/abstract/id.rb:226:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/cookies.rb:670:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.2/lib/active_support/callbacks.rb:98:in `run_callbacks'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/callbacks.rb:26:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/debug_exceptions.rb:61:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/logster-1.3.1/lib/logster/middleware/reporter.rb:31:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/railties-5.2.2/lib/rails/rack/logger.rb:38:in `call_app'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/railties-5.2.2/lib/rails/rack/logger.rb:28:in `call'
/var/www/discourse/config/initializers/100-quiet_logger.rb:16:in `call'
/var/www/discourse/config/initializers/100-silence_logger.rb:29:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/request_id.rb:27:in `call'
/var/www/discourse/lib/middleware/enforce_hostname.rb:17:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/rack-2.0.6/lib/rack/method_override.rb:22:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/executor.rb:14:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/rack-2.0.6/lib/rack/sendfile.rb:111:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/rack-mini-profiler-1.0.1/lib/mini_profiler/profiler.rb:171:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/message_bus-2.2.0.pre.1/lib/message_bus/rack/middleware.rb:57:in `call'
/var/www/discourse/lib/middleware/request_tracker.rb:180:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/railties-5.2.2/lib/rails/engine.rb:524:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/railties-5.2.2/lib/rails/railtie.rb:190:in `public_send'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/railties-5.2.2/lib/rails/railtie.rb:190:in `method_missing'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/rack-2.0.6/lib/rack/urlmap.rb:68:in `block in call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/rack-2.0.6/lib/rack/urlmap.rb:53:in `each'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/rack-2.0.6/lib/rack/urlmap.rb:53:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/unicorn-5.4.0/lib/unicorn/http_server.rb:606:in `process_client'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/unicorn-5.4.0/lib/unicorn/http_server.rb:701:in `worker_loop'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/unicorn-5.4.0/lib/unicorn/http_server.rb:549:in `spawn_missing_workers'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/unicorn-5.4.0/lib/unicorn/http_server.rb:142:in `start'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/unicorn-5.4.0/bin/unicorn:126:in `<top (required)>'
/var/www/discourse/vendor/bundle/ruby/2.5.0/bin/unicorn:23:in `load'
/var/www/discourse/vendor/bundle/ruby/2.5.0/bin/unicorn:23:in `<main>'
```
Any ideas or help to fix this?
---
### Author:  [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [December 13, 2018, 10:01pm UTC](https://meta.discourse.org/t/error-500-after-upgrade-v2-2-0-beta5-175/104221/2 "2018-12-13T22:01:15Z")
It looks like the twitter profile link plugin is not compatible? Try removing it and rebuilding?
---
### Author:  [@david](https://meta.discourse.org/u/david)
#### Post date: [December 13, 2018, 11:07pm UTC](https://meta.discourse.org/t/error-500-after-upgrade-v2-2-0-beta5-175/104221/3 "2018-12-13T23:07:29Z")
I’ve just pushed a fix to the plugin. You should be able to add the plugin back and rebuild now:
[https://github.com/discourse/twitter-profile-link/commit/0092677287df9fb6b670d6eb75fba2d7b16296a7](https://github.com/discourse/twitter-profile-link/commit/0092677287df9fb6b670d6eb75fba2d7b16296a7)
---
### Author:  [@TroyaNO](https://meta.discourse.org/u/TroyaNO)
#### Post date: [December 13, 2018, 11:11pm UTC](https://meta.discourse.org/t/error-500-after-upgrade-v2-2-0-beta5-175/104221/4 "2018-12-13T23:11:38Z")
> [@codinghorror](#):
>
> It looks like the twitter profile link plugin is not compatible? Try removing it and rebuilding?
Great, great, great! that works and this problema is fixed now. 👊
* * *
And since we are, I am seeing in the logs, another error, although it is only a warning
```plaintext
TypeError: Cannot set property 'unanswered' of undefined
at https://.com/theme-javascripts/f42a16d36493e4773b85153d5c8e43d532404c21.js?__ws=.com:8:46
at https://.com/theme-javascripts/f42a16d36493e4773b85153d5c8e43d532404c21.js?__ws=.com:20:4
```
These who can be? I have these continuous one after another 🙄
---
### Author:  [@david](https://meta.discourse.org/u/david)
#### Post date: [December 13, 2018, 11:13pm UTC](https://meta.discourse.org/t/error-500-after-upgrade-v2-2-0-beta5-175/104221/5 "2018-12-13T23:13:34Z")
> [@TroyaNO](#):
>
> https://\.com/theme-javascripts/
That means it is one of your themes. Have a look at your themes and see if there’s anything that needs updating. If not, try removing them one by one to isolate the source of the problem.
---
### Author:  [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [December 13, 2018, 11:16pm UTC](https://meta.discourse.org/t/error-500-after-upgrade-v2-2-0-beta5-175/104221/6 "2018-12-13T23:16:58Z")