No entiendo cuál es el problema

ActiveRecord::StatementInvalid (PG::UndefinedTable: ERROR:  la relación «categories» no existe
LINE 1: SELECT "categories"."id" FROM "categories" WHERE "categories"...
                                      ^
)
lib/freedom_patches/fast_pluck.rb:41:in `select_raw'
lib/freedom_patches/fast_pluck.rb:59:in `pluck'
lib/guardian/category_guardian.rb:69:in `allowed_category_ids'
app/models/tag.rb:102:in `top_tags'
app/serializers/site_serializer.rb:160:in `top_tags'
(eval):20:in `_fast_attributes'
app/models/site.rb:181:in `json_for'
app/controllers/application_controller.rb:605:in `preload_anonymous_data'
app/controllers/application_controller.rb:417:in `preload_json'
app/controllers/application_controller.rb:397:in `block in with_resolved_locale'
app/controllers/application_controller.rb:397:in `with_resolved_locale'
lib/middleware/omniauth_bypass_middleware.rb:71:in `call'
lib/content_security_policy/middleware.rb:12:in `call'
lib/middleware/anonymous_cache.rb:356: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:23:in `call'
lib/middleware/request_tracker.rb:198:in `call'

¿Puede dar más detalles sobre el problema que está experimentando?

¿Es esto desarrollo? ¿Parece que no has ejecutado tus migraciones?

hay algunos plugins, no hice nada más, no sé por qué está saliendo
ActiveRecord::StatementInvalid (PG::UndefinedTable: ERROR: la relación “categories” no existe LÍNEA 1: SELECCIONAR “categories”.“id” DESDE “categories” DONDE “categories”…

ActiveRecord::StatementInvalid (PG::UndefinedTable: ERROR:  la relación "categories" no existe
LÍNEA 1: SELECT "categories"."id" FROM "categories" WHERE "categories"...
                                      ^
)
lib/freedom_patches/fast_pluck.rb:41:in `select_raw'
lib/freedom_patches/fast_pluck.rb:59:in `pluck'
lib/guardian/category_guardian.rb:69:in `allowed_category_ids'
app/models/tag.rb:102:in `top_tags'
app/serializers/site_serializer.rb:160:in `top_tags'
(eval):20:in `_fast_attributes'
app/models/site.rb:181:in `json_for'
app/controllers/application_controller.rb:605:in `preload_anonymous_data'
app/controllers/application_controller.rb:417:in `preload_json'
app/controllers/application_controller.rb:397:in `block in with_resolved_locale'
app/controllers/application_controller.rb:397:in `with_resolved_locale'
lib/middleware/omniauth_bypass_middleware.rb:71:in `call'
lib/content_security_policy/middleware.rb:12:in `call'
lib/middleware/anonymous_cache.rb:356: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:23:in `call'
lib/middleware/request_tracker.rb:198:in `call'

¿Es esta una instalación estándar o algo más?

¿Por qué necesitas repetir el error? Podemos leer el primero. Por favor, no hagas eso, ya es lo suficientemente largo.

Lo instalé en mi propio servidor