UndefinedTable error on first time puma start in the installation process

Hi,
i have troubles while installing GitLab. If i start gitaly, puma causes an error.
I suspected an error when connecting to Redis or PostgreSQL, so I checked the setting several times. As Noob I came to the conclusion that the settings are set correctly according to the tutorial.
What does this error means and how to fix it?
If additional information is required to answer the question?

Jun 18 03:14:22 server gitlab-puma[9776]: {“timestamp”:“2020-06-18T01:14:22.439Z”,“pid”:9776,“message”:"! Unable to load application: ActiveRecord::StatementInvalid: PG::UndefinedTable: FEHLER: Relation »application_settings« existiert nicht\nLINE 1: SELECT “application_settings”.* FROM “application_settings” …\n ^\n"}

Jun 18 03:14:22 server gitlab-puma[9776]: bundler: failed to load command: puma (/usr/share/webapps/gitlab/vendor/bundle/ruby/2.7.0/bin/puma)

Jun 18 03:14:22 server gitlab-puma[9776]: ActiveRecord::StatementInvalid: PG::UndefinedTable: FEHLER: Relation »application_settings« existiert nicht

Jun 18 03:14:22 server gitlab-puma[9776]: LINE 1: SELECT “application_settings”.* FROM “application_settings” …

Used versions:
GitLab 13.0.6-1 (Arch Linux Repository)
redis 6.0.5-1 (Arch Linux Repository)
postgresql 12.3-1 (Arch Linux Repository)

Setup Redis and PostgreSQL connection:
https://wiki.archlinux.org/index.php/GitLab#Redis

Thanks for your attention, greet Jendrik.