# Can't delete this category because it has 1 topic **URL:** https://meta.discourse.org/t/cant-delete-this-category-because-it-has-1-topic/174648 **Category:** Support **Created:** [December 30, 2020, 9:50pm UTC](https://meta.discourse.org/t/cant-delete-this-category-because-it-has-1-topic/174648 "2020-12-30T21:50:02Z") **Posts on this page:** 1 **Showing post:** 6
### Author: ![sunjam](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/sunjam/32/175682_2.png) [@sunjam](https://meta.discourse.org/u/sunjam) #### Post date: [December 31, 2020, 6:11pm UTC](https://meta.discourse.org/t/cant-delete-this-category-because-it-has-1-topic/174648/6 "2020-12-31T18:11:44Z")
Okay, I’m seeing 3 errors in the log. They are: 1st error > **Summary** > > Message > > ActiveRecord::StatementInvalid (PG::UndefinedTable: ERROR: relation “categories” does not exist > LINE 1: SELECT categories.\*, t.slug topic\_slug FROM “categories” LEF… > ^ > ) > (eval):105:in `exec_params' app/models/site.rb:40:in `categories’ > app/models/site.rb:12:in `initialize' app/models/site.rb:113:in `new’ > app/models/site.rb:113:in `json_for' app/controllers/application_controller.rb:552:in `preload\_anonymous\_data’ > app/controllers/application\_controller.rb:378:in `preload_json' app/controllers/application_controller.rb:358:in `block in with\_resolved\_locale’ > app/controllers/application\_controller.rb:358:in `with_resolved_locale' lib/middleware/omniauth_bypass_middleware.rb:68:in `call’ > lib/content\_security\_policy/middleware.rb:12:in `call' lib/middleware/anonymous_cache.rb:352:in `call’ > config/initializers/100-quiet\_logger.rb:23:in `call' config/initializers/100-silence_logger.rb:31:in `call’ > lib/middleware/enforce\_hostname.rb:22:in `call' lib/middleware/request_tracker.rb:176:in `call’ > > Backtrace > > rack-mini-profiler (2.2.0) lib/patches/db/pg.rb:69:in `exec_params' rack-mini-profiler (2.2.0) lib/patches/db/pg.rb:69:in `exec\_params’ > (eval):105:in `exec_params' activerecord (6.0.3.3) lib/active_record/connection_adapters/postgresql_adapter.rb:675:in `block (2 levels) in exec\_no\_cache’ > activesupport (6.0.3.3) lib/active\_support/dependencies/interlock.rb:48:in `block in permit_concurrent_loads' activesupport (6.0.3.3) lib/active_support/concurrency/share_lock.rb:187:in `yield\_shares’ > activesupport (6.0.3.3) lib/active\_support/dependencies/interlock.rb:47:in `permit_concurrent_loads' activerecord (6.0.3.3) lib/active_record/connection_adapters/postgresql_adapter.rb:674:in `block in exec\_no\_cache’ > activerecord (6.0.3.3) lib/active\_record/connection\_adapters/abstract\_adapter.rb:722:in `block (2 levels) in log' activesupport (6.0.3.3) lib/active_support/concurrency/load_interlock_aware_monitor.rb:26:in `block (2 levels) in synchronize’ > > Env > > HTTP HOSTS: discuss.noisebridge.info 2nd error > **Summary** > > Message (3 copies reported) > > ActiveRecord::StatementInvalid (PG::UndefinedTable: ERROR: relation “categories” does not exist > LINE 1: SELECT categories.\*, t.slug topic\_slug FROM “categories” LEF… > ^ > ) > (eval):105:in `exec_params' app/models/site.rb:40:in `categories’ > app/models/site.rb:12:in `initialize' app/models/site.rb:113:in `new’ > app/models/site.rb:113:in `json_for' app/controllers/application_controller.rb:552:in `preload\_anonymous\_data’ > app/controllers/application\_controller.rb:378:in `preload_json' app/controllers/application_controller.rb:358:in `block in with\_resolved\_locale’ > app/controllers/application\_controller.rb:358:in `with_resolved_locale' lib/middleware/omniauth_bypass_middleware.rb:68:in `call’ > lib/content\_security\_policy/middleware.rb:12:in `call' lib/middleware/anonymous_cache.rb:352:in `call’ > config/initializers/100-quiet\_logger.rb:23:in `call' config/initializers/100-silence_logger.rb:31:in `call’ > lib/middleware/enforce\_hostname.rb:22:in `call' lib/middleware/request_tracker.rb:176:in `call’ > > Backtrace > > rack-mini-profiler (2.2.0) lib/patches/db/pg.rb:69:in `exec_params' rack-mini-profiler (2.2.0) lib/patches/db/pg.rb:69:in `exec\_params’ > (eval):105:in `exec_params' activerecord (6.0.3.3) lib/active_record/connection_adapters/postgresql_adapter.rb:675:in `block (2 levels) in exec\_no\_cache’ > activesupport (6.0.3.3) lib/active\_support/dependencies/interlock.rb:48:in `block in permit_concurrent_loads' activesupport (6.0.3.3) lib/active_support/concurrency/share_lock.rb:187:in `yield\_shares’ > activesupport (6.0.3.3) lib/active\_support/dependencies/interlock.rb:47:in `permit_concurrent_loads' activerecord (6.0.3.3) lib/active_record/connection_adapters/postgresql_adapter.rb:674:in `block in exec\_no\_cache’ > activerecord (6.0.3.3) lib/active\_record/connection\_adapters/abstract\_adapter.rb:722:in `block (2 levels) in log' activesupport (6.0.3.3) lib/active_support/concurrency/load_interlock_aware_monitor.rb:26:in `block (2 levels) in synchronize’ > > Env > > HTTP HOSTS: discuss.noisebridge.info 3rd error > **Summary** > > Message > > Job exception: PG::UndefinedTable: ERROR: relation “application\_requests” does not exist > LINE 1: SELECT “application\_requests”.“id” FROM "application\_request… > ^ > > Backtrace > > /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rack-mini-profiler-2.2.0/lib/patches/db/pg.rb:69:in `exec_params' /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rack-mini-profiler-2.2.0/lib/patches/db/pg.rb:69:in `exec\_params’ > (eval)💯in `exec_params' /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.3/lib/active_record/connection_adapters/postgresql_adapter.rb:675:in `block (2 levels) in exec\_no\_cache’ > /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activesupport-6.0.3.3/lib/active\_support/dependencies/interlock.rb:48:in `block in permit_concurrent_loads' /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activesupport-6.0.3.3/lib/active_support/concurrency/share_lock.rb:187:in `yield\_shares’ > /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activesupport-6.0.3.3/lib/active\_support/dependencies/interlock.rb:47:in `permit_concurrent_loads' /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.3/lib/active_record/connection_adapters/postgresql_adapter.rb:674:in `block in exec\_no\_cache’ > /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.3/lib/active\_record/connection\_adapters/abstract\_adapter.rb:722:in `block (2 levels) in log' /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activesupport-6.0.3.3/lib/active_support/concurrency/load_interlock_aware_monitor.rb:26:in `block (2 levels) in synchronize’ --- _[View the full topic](https://meta.discourse.org/t/cant-delete-this-category-because-it-has-1-topic/174648)._