All of the Could not check [...] warnings are the result of the server being unable to connect to itself via at least one of its trusted_domains or the overwrite.cli.url values (as noted in the output).
nextcloud-aio instance is running but with a load of warnings. Don’t know if its rootless docker or caddy and Tailscale.
If I had to bet, Tailscale since this is a connectivity/DNS matter in your environment.