Delete all logins in the vault no vault visible

I have just installed vw on my local machine in docker. All seems to work; imported passwords; realised there is no dedup function, so AWK to the rescue:

awk '!a[$0]++' < bitwarden_export.csv > bitwarden_export_deduped.csv

Now I want to import it, which is clear how to, but I need to delete the exsting ones first. However, I seem to be unable to find the menu for this.

No vault in the admin interface is a different problem: when I click it, it opens another tab and the spinner goes forever. What am I am I missing?

Any hints appreciated.