# User cards for anonymous visitors immediately dissappear with "500 Internal Server Error" in \`card.json?include\_post\_count\_for\`

**URL:** <https://meta.discourse.org/t/user-cards-for-anonymous-visitors-immediately-dissappear-with-500-internal-server-error-in-card-json-include-post-count-for/261309>\
**Category:** Support\
**Created:** [April 11, 2023, 1:00pm UTC](https://meta.discourse.org/t/user-cards-for-anonymous-visitors-immediately-dissappear-with-500-internal-server-error-in-card-json-include-post-count-for/261309 "2023-04-11T13:00:21Z")\
**Posts on this page:** 1\
**Showing post:** 5

<div class="post-metadata">

**Author:** ![rahim123](https://avatars.discourse-cdn.com/v4/letter/r/df705f/32.png) [@rahim123](https://meta.discourse.org/u/rahim123)\
**Post date:** [April 11, 2023, 1:46pm UTC](https://meta.discourse.org/t/user-cards-for-anonymous-visitors-immediately-dissappear-with-500-internal-server-error-in-card-json-include-post-count-for/261309/5 "2023-04-11T13:46:40Z")

</div>

Hmm, thanks for that, looks like you right, it was due to this plugin:

> [@Allow-pm-to-staff](https://meta.discourse.org/t/allow-pm-to-staff/260946):
>
> information_sourceSummary Allow all users to PM Staffhammer_and_wrenchRepository Link [https://github.com/pfaffman/discourse-allow-pm-to-staff](https://github.com/pfaffman/discourse-allow-pm-to-staff)open_bookInstall Guide [How to install plugins in Discourse](https://meta.discourse.org/t/install-plugins-in-discourse/19157)Features Allow users to send a PM to staff even if they would not otherwise be able to send a PM. Configuration allow\_pm\_to\_staff\_enabled–Enables the plugin (default true) allow\_pm\_allowed\_pm\_groups–Set groups who can receive PMs from all users (default “staff”). S…

Pinging @pfaffman

```plaintext
Message (184 copies reported)

NoMethodError (undefined method `in_any_groups?' for nil:NilClass)
lib/plugin/instance.rb:301:in `public_send'
lib/plugin/instance.rb:301:in `block (2 levels) in add_to_class'
app/serializers/user_card_serializer.rb:144:in `can_send_private_message_to_user'
(eval):18:in `_fast_attributes'
app/controllers/application_controller.rb:545:in `render_json_dump'
app/controllers/users_controller.rb:147:in `block (2 levels) in show'
app/controllers/users_controller.rb:140:in `show'
app/controllers/users_controller.rb:152:in `show_card'
app/controllers/application_controller.rb:414:in `block in with_resolved_locale'
app/controllers/application_controller.rb:414:in `with_resolved_locale'
lib/middleware/omniauth_bypass_middleware.rb:74:in `call'
lib/content_security_policy/middleware.rb:12:in `call'
lib/middleware/anonymous_cache.rb:367:in `call'
config/initializers/100-quiet_logger.rb:20:in `call'
config/initializers/100-silence_logger.rb:29:in `call'
lib/middleware/enforce_hostname.rb:24:in `call'
lib/middleware/request_tracker.rb:228:in `call'

Backtrace

plugins/discourse-allow-pm-to-staff/plugin.rb:52:in `block (2 levels) in activate!'
lib/plugin/instance.rb:301:in `public_send'
lib/plugin/instance.rb:301:in `block (2 levels) in add_to_class'
app/serializers/user_card_serializer.rb:144:in `can_send_private_message_to_user'
(eval):18:in `_fast_attributes'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:468:in `rescue in attributes'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:455:in `attributes'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:480:in `_serializable_hash'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:359:in `serializable_hash'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:343:in `as_json'
```

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