Gitlab-ctl reconfigure hangs (debian, omnibus install)

I’ve just installed a gitlab-ee on Debian 11 following these instructions: Download and install GitLab | GitLab

right after the installation I’ve started a gitlab-ctl reconfigure (as the hostname wasn’t valid before), but it hangs, never finishes. In the reconfigure log:

[2022-05-12T18:15:29+02:00] WARN: Selected systemd because /run/systemd/system/ exists
[2022-05-12T18:15:32+02:00] WARN: only_if block for templatesymlink[Create a gitlab_pages_secret and create a symlink to Rails root] returned a string, did you mean to run a command?
[2022-05-12T18:15:32+02:00] WARN: only_if block for templatesymlink[Create a gitlab_kas_secret and create a symlink to Rails root] returned a string, did you mean to run a command?

I’ve stopped (CTRL-c) and started again, the reconfigure always hangs in different points of the configuration…