@PhilipFaure ok so there is some confusion, which i’m gonna try to explain.
Long story short, you need to get in touch and coordinate with your administrator to get this solved.
So, Passbolt has a server component that is managed by your organization and client component (the web extension) that is installed from the chrome web store for example. The email you received and put a screenshot on here, is a link to download / get started with passbolt community edition server. You do not need this, as your administrator have set one up for you.
You should retry to go to the domain set by your administator, something like https://passbolt.yourdomain.com for example and go to /recover, (as in https://passbolt.yourdomain.com/recover ). From there you can request a recovery email.
You will need your private key and passphrase that you should have backed up during the initial setup of your user account. If you do not receive such email, check your spam folder and contact your administrator. The server is probably misconfigured / not sending email properly.
If you have lost your private key and/or don’t remember your passphrase, you can ask your administrator to delete and create a new account for you with the same email. You will then receive an email to proceeed with a setup. It also requires email to work on the server.
I hope this helps, let me know if you have more questions.