After I upgraded/rebuilt less than an hour ago. I am seeing the message in the title on visiting the group index page at
I also can’t visit individual group pages as admin (they work okay in a private window without logging in). I get
Server Error while trying to load [/groups/CTRG.json](https://domain.com/groups/CTRG.json) Error code: 500 error
I see the following in logs:
NoMethodError (undefined method `notification_level' for "category-theory":String) app/serializers/basic_group_serializer.rb:152:in `block (3 levels) in <class:BasicGroupSerializer>' app/serializers/basic_group_serializer.rb:151:in `filter' app/serializers/basic_group_serializer.rb:151:in `block (2 levels) in <class:BasicGroupSerializer>' (eval):53:in `_fast_attributes' app/controllers/application_controller.rb:438:in `serialize_data' app/controllers/groups_controller.rb:93:in `index' app/controllers/application_controller.rb:340:in `block in with_resolved_locale' app/controllers/application_controller.rb:340: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:336: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'
category-theory is the name of a tag. I had set up group level notifications for that tag a few days ago.
Probably because of the recent change at PERF: Use 1 query to load group and tag notification default. · discourse/discourse@5ef9d4d · GitHub cc: @tgxworld