metasmoke rails db:seed failure

rails.log

#20 18.45 + rails db:seed
#20 22.52 /usr/src/app/config/initializers/appconfig.rb:3: warning: already initialized constant AppConfig
#20 22.52 /usr/src/app/config/application.rb:50: warning: previous definition of AppConfig was here
#20 24.28 rails aborted!
#20 24.29 NoMethodError: undefined method `count' for nil:NilClass
#20 24.29 /usr/src/app/app/helpers/sites_helper.rb:9:in `update_sites'
#20 24.29 /usr/src/app/db/seeds.rb:16:in `<top (required)>'
#20 24.29 /usr/local/bundle/gems/activesupport-5.2.6/lib/active_support/dependencies.rb:285:in `load'
#20 24.29 /usr/local/bundle/gems/activesupport-5.2.6/lib/active_support/dependencies.rb:285:in `block in load'
#20 24.29 /usr/local/bundle/gems/activesupport-5.2.6/lib/active_support/dependencies.rb:257:in `load_dependency'
#20 24.29 /usr/local/bundle/gems/activesupport-5.2.6/lib/active_support/dependencies.rb:285:in `load'
#20 24.29 /usr/local/bundle/gems/railties-5.2.6/lib/rails/engine.rb:554:in `block in load_seed'
#20 24.29 /usr/local/bundle/gems/railties-5.2.6/lib/rails/engine.rb:672:in `with_inline_jobs'
#20 24.29 /usr/local/bundle/gems/railties-5.2.6/lib/rails/engine.rb:554:in `load_seed'
#20 24.29 /usr/local/bundle/gems/activerecord-5.2.6/lib/active_record/tasks/database_tasks.rb:281:in `load_seed'
#20 24.29 /usr/local/bundle/gems/activerecord-5.2.6/lib/active_record/railties/databases.rake:194:in `block (2 levels) in <top (required)>'
#20 24.29 /usr/local/bundle/gems/railties-5.2.6/lib/rails/commands/rake/rake_command.rb:23:in `block in perform'
#20 24.29 /usr/local/bundle/gems/railties-5.2.6/lib/rails/commands/rake/rake_command.rb:20:in `perform'
#20 24.29 /usr/local/bundle/gems/railties-5.2.6/lib/rails/command.rb:48:in `invoke'
#20 24.29 /usr/local/bundle/gems/railties-5.2.6/lib/rails/commands.rb:18:in `<top (required)>'
#20 24.29 bin/rails:11:in `require'
#20 24.29 bin/rails:11:in `<main>'
#20 24.29 Tasks: TOP => db:seed
#20 24.29 (See full trace by running task with --trace)
#20 24.31 <table>
#20 24.31 <thead>
#20 24.31 <tr><td><strong>Path</strong></td><td><strong>Description</strong></td></tr>
#20 24.31 </thead>
#20 24.31 <tbody>
#20 24.31 </tbody>
#20 24.31 </table>

Hmm, I was able to log in and play around with it for a while but then it froze. Maybe I touched something I shouldn't have?

The last things I can see on the console are

205:M 20 Oct 2021 21:06:05.211 * 100 changes in 300 seconds. Saving...
205:M 20 Oct 2021 21:06:05.212 * Background saving started by pid 351
351:C 20 Oct 2021 21:06:05.218 * DB saved on disk
351:C 20 Oct 2021 21:06:05.219 * Fork CoW for RDB: current 0 MB, peak 0 MB, average 0 MB
205:M 20 Oct 2021 21:06:05.314 * Background saving terminated with success

It happened again, this time without anything interesting on the console. The site icon in the browser tab is replaced with a spinner, I can still click open menus but attempting to select something in them or otherwise clicking on anything doesn't navigate away from the page where I was when it happened. But it looks like there are probably just a few routes which trigger this. For example, just now, it clearly happened when I clicked http://localhost:5000/dev/request-log/user/1 and I think the earlier occurrences were also related to clicking on dev stuff related to logging or dumps.