Hello,
By default passbolt will try to enforce https. You should be able to access passbolt at https://localhost:8443. If you want to access it with http (which is a bad idea in production, but for testing it’s ok), you will need to set the environment variable to PASSBOLT_SSL_FORCE to false.
Also it seems the URL is set to https://passbolt.local and you want it to be localhost.
You can redefine the host using the APP_FULL_BASE_URL environment variable to localhost. Alternatively you can map passbolt.local in your /etc/host file on your local machine.
127.0.0.1 passbolt.local