Rake searchindex rebuild Could not load database configuration, docker compose

• Used Zammad version: 6.3.1
• Used Zammad installation type: Docker Compose
• Operating system: Debian

Error

I imported a pgdump, but some tickets are missing, I tried to clear the cache, but there is following error:

root@zammad:/opt/zammad-docker-compose# docker compose exec zammad-railsserver rake zammad:searchindex:rebuild 


rake aborted!
Cannot load database configuration:
Could not load database configuration. No such file - ["config/database.yml"]
/usr/local/bundle/gems/railties-7.0.8.4/lib/rails/application/configuration.rb:352:in `database_configuration'
/usr/local/bundle/gems/activerecord-7.0.8.4/lib/active_record/railtie.rb:266:in `block (2 levels) in <class:Railtie>'
/usr/local/bundle/gems/activesupport-7.0.8.4/lib/active_support/lazy_load_hooks.rb:95:in `class_eval'
/usr/local/bundle/gems/activesupport-7.0.8.4/lib/active_support/lazy_load_hooks.rb:95:in `block in execute_hook'
/usr/local/bundle/gems/activesupport-7.0.8.4/lib/active_support/lazy_load_hooks.rb:85:in `with_execution_control'
/usr/local/bundle/gems/activesupport-7.0.8.4/lib/active_support/lazy_load_hooks.rb:90:in `execute_hook'
/usr/local/bundle/gems/activesupport-7.0.8.4/lib/active_support/lazy_load_hooks.rb:60:in `block in on_load'
/usr/local/bundle/gems/activesupport-7.0.8.4/lib/active_support/lazy_load_hooks.rb:59:in `each'
/usr/local/bundle/gems/activesupport-7.0.8.4/lib/active_support/lazy_load_hooks.rb:59:in `on_load'
/usr/local/bundle/gems/activerecord-7.0.8.4/lib/active_record/railtie.rb:262:in `block in <class:Railtie>'
/usr/local/bundle/gems/railties-7.0.8.4/lib/rails/initializable.rb:32:in `instance_exec'
/usr/local/bundle/gems/railties-7.0.8.4/lib/rails/initializable.rb:32:in `run'
/usr/local/bundle/gems/railties-7.0.8.4/lib/rails/initializable.rb:61:in `block in run_initializers'
/usr/local/bundle/gems/railties-7.0.8.4/lib/rails/initializable.rb:60:in `run_initializers'
/usr/local/bundle/gems/railties-7.0.8.4/lib/rails/application.rb:372:in `initialize!'
/opt/zammad/config/environment.rb:7:in `<main>'
/usr/local/bundle/gems/bootsnap-1.18.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/usr/local/bundle/gems/bootsnap-1.18.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/usr/local/bundle/gems/zeitwerk-2.6.15/lib/zeitwerk/kernel.rb:34:in `require'
/usr/local/bundle/gems/railties-7.0.8.4/lib/rails/application.rb:348:in `require_environment!'
/usr/local/bundle/gems/railties-7.0.8.4/lib/rails/application.rb:506:in `block in run_tasks_blocks'
/usr/local/bundle/gems/rake-13.1.0/exe/rake:27:in `<top (required)>'

I dont understand why, my database is running on another machine, i configured it via the .env file… Does someone have a solution for that? Im a absolute beginner in docker.