# Error: Users can't make new accounts

**URL:** <https://meta.discourse.org/t/error-users-cant-make-new-accounts/252981>\
**Category:** Bug\
**Created:** [January 26, 2023, 2:40pm UTC](https://meta.discourse.org/t/error-users-cant-make-new-accounts/252981 "2023-01-26T14:40:14Z")\
**Posts on this page:** 1\
**Showing post:** 8

<div class="post-metadata">

**Author:** ![minami](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/minami/32/290724_2.png) [@minami](https://meta.discourse.org/u/minami)\
**Post date:** [January 26, 2023, 3:56pm UTC](https://meta.discourse.org/t/error-users-cant-make-new-accounts/252981/8 "2023-01-26T15:56:11Z")

</div>

Okay I tried the invite link and got an internal server error.

![image](https://global.discourse-cdn.com/meta/original/4X/e/d/f/edf4cf8fb41c71d7627c423b9979df0b11529fc2.png)

> **Info**
>
> ```plaintext
> Failed to handle exception in exception app middleware : ActiveRecord::RecordNotUnique : PG::UniqueViolation: ERROR: duplicate key value violates unique constraint "idx_category_users_user_id_categor
> 
> 12:44 am
> 
> rack-mini-profiler (3.0.0) lib/patches/db/pg.rb:69:in `exec_params'
> 
> rack-mini-profiler (3.0.0) lib/patches/db/pg.rb:69:in `exec_params'
> 
> activerecord (7.0.4.1) lib/active_record/connection_adapters/postgresql_adapter.rb:768:in `block (2 levels) in exec_no_cache'
> 
> activesupport (7.0.4.1) lib/active_support/concurrency/share_lock.rb:187:in `yield_shares'
> 
> activesupport (7.0.4.1) lib/active_support/dependencies/interlock.rb:41:in `permit_concurrent_loads'
> 
> activerecord (7.0.4.1) lib/active_record/connection_adapters/postgresql_adapter.rb:767:in `block in exec_no_cache'
> 
> activesupport (7.0.4.1) lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `handle_interrupt'
> 
> activesupport (7.0.4.1) lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `block in synchronize'
> 
> activesupport (7.0.4.1) lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `handle_interrupt'
> 
> activesupport (7.0.4.1) lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `synchronize'
> 
> activerecord (7.0.4.1) lib/active_record/connection_adapters/abstract_adapter.rb:765:in `block in log'
> 
> activesupport (7.0.4.1) lib/active_support/notifications/instrumenter.rb:24:in `instrument'
> 
> activerecord (7.0.4.1) lib/active_record/connection_adapters/abstract_adapter.rb:756:in `log'
> 
> activerecord (7.0.4.1) lib/active_record/connection_adapters/postgresql_adapter.rb:766:in `exec_no_cache'
> 
> activerecord (7.0.4.1) lib/active_record/connection_adapters/postgresql_adapter.rb:745:in `execute_and_clear'
> 
> activerecord (7.0.4.1) lib/active_record/connection_adapters/postgresql/database_statements.rb:54:in `exec_query'
> 
> activerecord (7.0.4.1) lib/active_record/connection_adapters/abstract/database_statements.rb:150:in `exec_insert_all'
> 
> activerecord (7.0.4.1) lib/active_record/connection_adapters/abstract/query_cache.rb:22:in `exec_insert_all'
> 
> activerecord (7.0.4.1) lib/active_record/insert_all.rb:41:in `execute'
> 
> activerecord (7.0.4.1) lib/active_record/persistence.rb:213:in `insert_all!'
> 
> app/models/user.rb:1961:in `set_default_categories_preferences'
> 
> activesupport (7.0.4.1) lib/active_support/callbacks.rb:400:in `block in make_lambda'
> 
> activesupport (7.0.4.1) lib/active_support/callbacks.rb:236:in `block in halting_and_conditional'
> 
> activesupport (7.0.4.1) lib/active_support/callbacks.rb:599:in `block in invoke_after'
> 
> activesupport (7.0.4.1) lib/active_support/callbacks.rb:599:in `each'
> 
> activesupport (7.0.4.1) lib/active_support/callbacks.rb:599:in `invoke_after'
> 
> activesupport (7.0.4.1) lib/active_support/callbacks.rb:108:in `run_callbacks'
> 
> activesupport (7.0.4.1) lib/active_support/callbacks.rb:929:in `_run_create_callbacks'
> 
> activerecord (7.0.4.1) lib/active_record/callbacks.rb:461:in `_create_record'
> 
> activerecord (7.0.4.1) lib/active_record/timestamp.rb:108:in `_create_record'
> 
> activerecord (7.0.4.1) lib/active_record/persistence.rb:1067:in `create_or_update'
> 
> activerecord (7.0.4.1) lib/active_record/callbacks.rb:457:in `block in create_or_update'
> 
> activesupport (7.0.4.1) lib/active_support/callbacks.rb:118:in `block in run_callbacks'
> 
> activerecord (7.0.4.1) lib/active_record/autosave_association.rb:370:in `around_save_collection_association'
> 
> activesupport (7.0.4.1) lib/active_support/callbacks.rb:127:in `block in run_callbacks'
> 
> activesupport (7.0.4.1) lib/active_support/callbacks.rb:138:in `run_callbacks'
> 
> activesupport (7.0.4.1) lib/active_support/callbacks.rb:929:in `_run_save_callbacks'
> 
> activerecord (7.0.4.1) lib/active_record/callbacks.rb:457:in `create_or_update'
> 
> activerecord (7.0.4.1) lib/active_record/timestamp.rb:126:in `create_or_update'
> 
> activerecord (7.0.4.1) lib/active_record/persistence.rb:648:in `save!'
> 
> activerecord (7.0.4.1) lib/active_record/validations.rb:53:in `save!'
> 
> activerecord (7.0.4.1) lib/active_record/transactions.rb:302:in `block in save!'
> 
> activerecord (7.0.4.1) lib/active_record/transactions.rb:354:in `block in with_transaction_returning_status'
> 
> activerecord (7.0.4.1) lib/active_record/connection_adapters/abstract/database_statements.rb:314:in `transaction'
> 
> activerecord (7.0.4.1) lib/active_record/transactions.rb:350:in `with_transaction_returning_status'
> 
> activerecord (7.0.4.1) lib/active_record/transactions.rb:302:in `save!'
> 
> activerecord (7.0.4.1) lib/active_record/suppressor.rb:54:in `save!'
> 
> app/models/invite_redeemer.rb:155:in `create_user_from_invite'
> 
> app/models/invite_redeemer.rb:219:in `invited_user'
> 
> app/models/invite_redeemer.rb:273:in `add_user_to_groups'
> 
> app/models/invite_redeemer.rb:237:in `process_invitation'
> 
> app/models/invite_redeemer.rb:56:in `block in redeem'
> 
> activerecord (7.0.4.1) lib/active_record/connection_adapters/abstract/transaction.rb:319:in `block in within_new_transaction'
> 
> activesupport (7.0.4.1) lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `handle_interrupt'
> 
> activesupport (7.0.4.1) lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `block in synchronize'
> 
> activesupport (7.0.4.1) lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `handle_interrupt'
> 
> activesupport (7.0.4.1) lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `synchronize'
> 
> activerecord (7.0.4.1) lib/active_record/connection_adapters/abstract/transaction.rb:317:in `within_new_transaction'
> 
> activerecord (7.0.4.1) lib/active_record/connection_adapters/abstract/database_statements.rb:316:in `transaction'
> 
> activerecord (7.0.4.1) lib/active_record/transactions.rb:209:in `transaction'
> 
> app/models/invite_redeemer.rb:54:in `redeem'
> 
> app/models/invite.rb:226:in `redeem'
> 
> app/controllers/invites_controller.rb:284:in `perform_accept_invitation'
> 
> actionpack (7.0.4.1) lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action'
> 
> actionpack (7.0.4.1) lib/abstract_controller/base.rb:215:in `process_action'
> 
> actionpack (7.0.4.1) lib/action_controller/metal/rendering.rb:53:in `process_action'
> 
> actionpack (7.0.4.1) lib/abstract_controller/callbacks.rb:234:in `block in process_action'
> 
> activesupport (7.0.4.1) lib/active_support/callbacks.rb:118:in `block in run_callbacks'
> 
> app/controllers/application_controller.rb:414:in `block in with_resolved_locale'
> 
> i18n (1.12.0) lib/i18n.rb:322:in `with_locale'
> 
> app/controllers/application_controller.rb:414:in `with_resolved_locale'
> 
> activesupport (7.0.4.1) lib/active_support/callbacks.rb:127:in `block in run_callbacks'
> 
> activesupport (7.0.4.1) lib/active_support/callbacks.rb:138:in `run_callbacks'
> 
> actionpack (7.0.4.1) lib/abstract_controller/callbacks.rb:233:in `process_action'
> 
> actionpack (7.0.4.1) lib/action_controller/metal/rescue.rb:22:in `process_action'
> 
> actionpack (7.0.4.1) lib/action_controller/metal/instrumentation.rb:67:in `block in process_action'
> 
> activesupport (7.0.4.1) lib/active_support/notifications.rb:206:in `block in instrument'
> 
> activesupport (7.0.4.1) lib/active_support/notifications/instrumenter.rb:24:in `instrument'
> 
> activesupport (7.0.4.1) lib/active_support/notifications.rb:206:in `instrument'
> 
> actionpack (7.0.4.1) lib/action_controller/metal/instrumentation.rb:66:in `process_action'
> 
> actionpack (7.0.4.1) lib/action_controller/metal/params_wrapper.rb:259:in `process_action'
> 
> activerecord (7.0.4.1) lib/active_record/railties/controller_runtime.rb:27:in `process_action'
> 
> actionpack (7.0.4.1) lib/abstract_controller/base.rb:151:in `process'
> 
> actionview (7.0.4.1) lib/action_view/rendering.rb:39:in `process'
> 
> rack-mini-profiler (3.0.0) lib/mini_profiler/profiling_methods.rb:85:in `block in profile_method'
> 
> actionpack (7.0.4.1) lib/action_controller/metal.rb:188:in `dispatch'
> 
> actionpack (7.0.4.1) lib/action_controller/metal.rb:251:in `dispatch'
> 
> actionpack (7.0.4.1) lib/action_dispatch/routing/route_set.rb:49:in `dispatch'
> 
> actionpack (7.0.4.1) lib/action_dispatch/routing/route_set.rb:32:in `serve'
> 
> actionpack (7.0.4.1) lib/action_dispatch/journey/router.rb:50:in `block in serve'
> 
> actionpack (7.0.4.1) lib/action_dispatch/journey/router.rb:32:in `each'
> 
> actionpack (7.0.4.1) lib/action_dispatch/journey/router.rb:32:in `serve'
> 
> actionpack (7.0.4.1) lib/action_dispatch/routing/route_set.rb:852:in `call'
> 
> lib/middleware/omniauth_bypass_middleware.rb:74:in `call'
> 
> rack (2.2.6.2) lib/rack/tempfile_reaper.rb:15:in `call'
> 
> rack (2.2.6.2) lib/rack/conditional_get.rb:40:in `call'
> 
> rack (2.2.6.2) lib/rack/head.rb:12:in `call'
> 
> actionpack (7.0.4.1) lib/action_dispatch/http/permissions_policy.rb:38:in `call'
> 
> lib/content_security_policy/middleware.rb:12:in `call'
> 
> lib/middleware/anonymous_cache.rb:369:in `call'
> 
> rack (2.2
> 
> ```

> **Backtrace**
>
> ```plaintext
> rack-mini-profiler-3.0.0/lib/patches/db/pg.rb:69:in `exec_params'
> 
> rack-mini-profiler-3.0.0/lib/patches/db/pg.rb:69:in `exec_params'
> 
> activerecord-7.0.4.1/lib/active_record/connection_adapters/postgresql_adapter.rb:768:in `block (2 levels) in exec_no_cache'
> 
> activesupport-7.0.4.1/lib/active_support/concurrency/share_lock.rb:187:in `yield_shares'
> 
> activesupport-7.0.4.1/lib/active_support/dependencies/interlock.rb:41:in `permit_concurrent_loads'
> 
> activerecord-7.0.4.1/lib/active_record/connection_adapters/postgresql_adapter.rb:767:in `block in exec_no_cache'
> 
> activesupport-7.0.4.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `handle_interrupt'
> 
> activesupport-7.0.4.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `block in synchronize'
> 
> activesupport-7.0.4.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `handle_interrupt'
> 
> activesupport-7.0.4.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `synchronize'
> 
> activerecord-7.0.4.1/lib/active_record/connection_adapters/abstract_adapter.rb:765:in `block in log'
> 
> activesupport-7.0.4.1/lib/active_support/notifications/instrumenter.rb:24:in `instrument'
> 
> activerecord-7.0.4.1/lib/active_record/connection_adapters/abstract_adapter.rb:756:in `log'
> 
> activerecord-7.0.4.1/lib/active_record/connection_adapters/postgresql_adapter.rb:766:in `exec_no_cache'
> 
> activerecord-7.0.4.1/lib/active_record/connection_adapters/postgresql_adapter.rb:745:in `execute_and_clear'
> 
> activerecord-7.0.4.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:54:in `exec_query'
> 
> activerecord-7.0.4.1/lib/active_record/connection_adapters/abstract/database_statements.rb:150:in `exec_insert_all'
> 
> activerecord-7.0.4.1/lib/active_record/connection_adapters/abstract/query_cache.rb:22:in `exec_insert_all'
> 
> activerecord-7.0.4.1/lib/active_record/insert_all.rb:41:in `execute'
> 
> activerecord-7.0.4.1/lib/active_record/persistence.rb:213:in `insert_all!'
> 
> /var/www/discourse/app/models/user.rb:1961:in `set_default_categories_preferences'
> 
> activesupport-7.0.4.1/lib/active_support/callbacks.rb:400:in `block in make_lambda'
> 
> activesupport-7.0.4.1/lib/active_support/callbacks.rb:236:in `block in halting_and_conditional'
> 
> activesupport-7.0.4.1/lib/active_support/callbacks.rb:599:in `block in invoke_after'
> 
> activesupport-7.0.4.1/lib/active_support/callbacks.rb:599:in `each'
> 
> activesupport-7.0.4.1/lib/active_support/callbacks.rb:599:in `invoke_after'
> 
> activesupport-7.0.4.1/lib/active_support/callbacks.rb:108:in `run_callbacks'
> 
> activesupport-7.0.4.1/lib/active_support/callbacks.rb:929:in `_run_create_callbacks'
> 
> activerecord-7.0.4.1/lib/active_record/callbacks.rb:461:in `_create_record'
> 
> activerecord-7.0.4.1/lib/active_record/timestamp.rb:108:in `_create_record'
> 
> activerecord-7.0.4.1/lib/active_record/persistence.rb:1067:in `create_or_update'
> 
> activerecord-7.0.4.1/lib/active_record/callbacks.rb:457:in `block in create_or_update'
> 
> activesupport-7.0.4.1/lib/active_support/callbacks.rb:118:in `block in run_callbacks'
> 
> activerecord-7.0.4.1/lib/active_record/autosave_association.rb:370:in `around_save_collection_association'
> 
> activesupport-7.0.4.1/lib/active_support/callbacks.rb:127:in `block in run_callbacks'
> 
> activesupport-7.0.4.1/lib/active_support/callbacks.rb:138:in `run_callbacks'
> 
> activesupport-7.0.4.1/lib/active_support/callbacks.rb:929:in `_run_save_callbacks'
> 
> activerecord-7.0.4.1/lib/active_record/callbacks.rb:457:in `create_or_update'
> 
> activerecord-7.0.4.1/lib/active_record/timestamp.rb:126:in `create_or_update'
> 
> activerecord-7.0.4.1/lib/active_record/persistence.rb:648:in `save!'
> 
> activerecord-7.0.4.1/lib/active_record/validations.rb:53:in `save!'
> 
> activerecord-7.0.4.1/lib/active_record/transactions.rb:302:in `block in save!'
> 
> activerecord-7.0.4.1/lib/active_record/transactions.rb:354:in `block in with_transaction_returning_status'
> 
> activerecord-7.0.4.1/lib/active_record/connection_adapters/abstract/database_statements.rb:314:in `transaction'
> 
> activerecord-7.0.4.1/lib/active_record/transactions.rb:350:in `with_transaction_returning_status'
> 
> activerecord-7.0.4.1/lib/active_record/transactions.rb:302:in `save!'
> 
> activerecord-7.0.4.1/lib/active_record/suppressor.rb:54:in `save!'
> 
> /var/www/discourse/app/models/invite_redeemer.rb:155:in `create_user_from_invite'
> 
> /var/www/discourse/app/models/invite_redeemer.rb:219:in `invited_user'
> 
> /var/www/discourse/app/models/invite_redeemer.rb:273:in `add_user_to_groups'
> 
> /var/www/discourse/app/models/invite_redeemer.rb:237:in `process_invitation'
> 
> /var/www/discourse/app/models/invite_redeemer.rb:56:in `block in redeem'
> 
> activerecord-7.0.4.1/lib/active_record/connection_adapters/abstract/transaction.rb:319:in `block in within_new_transaction'
> 
> activesupport-7.0.4.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `handle_interrupt'
> 
> activesupport-7.0.4.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `block in synchronize'
> 
> activesupport-7.0.4.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `handle_interrupt'
> 
> activesupport-7.0.4.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `synchronize'
> 
> activerecord-7.0.4.1/lib/active_record/connection_adapters/abstract/transaction.rb:317:in `within_new_transaction'
> 
> activerecord-7.0.4.1/lib/active_record/connection_adapters/abstract/database_statements.rb:316:in `transaction'
> 
> activerecord-7.0.4.1/lib/active_record/transactions.rb:209:in `transaction'
> 
> /var/www/discourse/app/models/invite_redeemer.rb:54:in `redeem'
> 
> /var/www/discourse/app/models/invite.rb:226:in `redeem'
> 
> /var/www/discourse/app/controllers/invites_controller.rb:284:in `perform_accept_invitation'
> 
> actionpack-7.0.4.1/lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action'
> 
> actionpack-7.0.4.1/lib/abstract_controller/base.rb:215:in `process_action'
> 
> actionpack-7.0.4.1/lib/action_controller/metal/rendering.rb:53:in `process_action'
> 
> actionpack-7.0.4.1/lib/abstract_controller/callbacks.rb:234:in `block in process_action'
> 
> activesupport-7.0.4.1/lib/active_support/callbacks.rb:118:in `block in run_callbacks'
> 
> /var/www/discourse/app/controllers/application_controller.rb:414:in `block in with_resolved_locale'
> 
> i18n-1.12.0/lib/i18n.rb:322:in `with_locale'
> 
> /var/www/discourse/app/controllers/application_controller.rb:414:in `with_resolved_locale'
> 
> activesupport-7.0.4.1/lib/active_support/callbacks.rb:127:in `block in run_callbacks'
> 
> activesupport-7.0.4.1/lib/active_support/callbacks.rb:138:in `run_callbacks'
> 
> actionpack-7.0.4.1/lib/abstract_controller/callbacks.rb:233:in `process_action'
> 
> actionpack-7.0.4.1/lib/action_controller/metal/rescue.rb:22:in `process_action'
> 
> actionpack-7.0.4.1/lib/action_controller/metal/instrumentation.rb:67:in `block in process_action'
> 
> activesupport-7.0.4.1/lib/active_support/notifications.rb:206:in `block in instrument'
> 
> activesupport-7.0.4.1/lib/active_support/notifications/instrumenter.rb:24:in `instrument'
> 
> activesupport-7.0.4.1/lib/active_support/notifications.rb:206:in `instrument'
> 
> actionpack-7.0.4.1/lib/action_controller/metal/instrumentation.rb:66:in `process_action'
> 
> actionpack-7.0.4.1/lib/action_controller/metal/params_wrapper.rb:259:in `process_action'
> 
> activerecord-7.0.4.1/lib/active_record/railties/controller_runtime.rb:27:in `process_action'
> 
> actionpack-7.0.4.1/lib/abstract_controller/base.rb:151:in `process'
> 
> actionview-7.0.4.1/lib/action_view/rendering.rb:39:in `process'
> 
> rack-mini-profiler-3.0.0/lib/mini_profiler/profiling_methods.rb:85:in `block in profile_method'
> 
> actionpack-7.0.4.1/lib/action_controller/metal.rb:188:in `dispatch'
> 
> actionpack-7.0.4.1/lib/action_controller/metal.rb:251:in `dispatch'
> 
> actionpack-7.0.4.1/lib/action_dispatch/routing/route_set.rb:49:in `dispatch'
> 
> actionpack-7.0.4.1/lib/action_dispatch/routing/route_set.rb:32:in `serve'
> 
> actionpack-7.0.4.1/lib/action_dispatch/journey/router.rb:50:in `block in serve'
> 
> actionpack-7.0.4.1/lib/action_dispatch/journey/router.rb:32:in `each'
> 
> actionpack-7.0.4.1/lib/action_dispatch/journey/router.rb:32:in `serve'
> 
> actionpack-7.0.4.1/lib/action_dispatch/routing/route_set.rb:852:in `call'
> 
> /var/www/discourse/lib/middleware/omniauth_bypass_middleware.rb:74:in `call'
> 
> rack-2.2.6.2/lib/rack/tempfile_reaper.rb:15:in `call'
> 
> rack-2.2.6.2/lib/rack/conditional_get.rb:40:in `call'
> 
> rack-2.2.6.2/lib/rack/head.rb:12:in `call'
> 
> actionpack-7.0.4.1/lib/action_dispatch/http/permissions_policy.rb:38:in `call'
> 
> /var/www/discourse/lib/content_security_policy/middleware.rb:12:in `call'
> 
> /var/www/discourse/lib/middleware/anonymous_cache.rb:369:in `call'
> 
> rack-2.2.6.2/lib/rack/session/abstract/id.rb:266:in `context'
> 
> rack-2.2.6.2/lib/rack/session/abstract/id.rb:260:in `call'
> 
> actionpack-7.0.4.1/lib/action_dispatch/middleware/cookies.rb:704:in `call'
> 
> actionpack-7.0.4.1/lib/action_dispatch/middleware/callbacks.rb:27:in `block in call'
> 
> activesupport-7.0.4.1/lib/active_support/callbacks.rb:99:in `run_callbacks'
> 
> actionpack-7.0.4.1/lib/action_dispatch/middleware/callbacks.rb:26:in `call'
> 
> actionpack-7.0.4.1/lib/action_dispatch/middleware/debug_exceptions.rb:28:in `call'
> 
> actionpack-7.0.4.1/lib/action_dispatch/middleware/show_exceptions.rb:26:in `call'
> 
> logster-2.11.3/lib/logster/middleware/reporter.rb:43:in `call'
> 
> railties-7.0.4.1/lib/rails/rack/logger.rb:40:in `call_app'
> 
> railties-7.0.4.1/lib/rails/rack/logger.rb:27:in `call'
> 
> /var/www/discourse/config/initializers/100-quiet_logger.rb:20:in `call'
> 
> /var/www/discourse/config/initializers/100-si
> 
> ```

---

_[View the full topic](https://meta.discourse.org/t/error-users-cant-make-new-accounts/252981)._