The password was changed
Applies to /account/reset-password/complete
The password on the account has been changed. You can now sign in with the new one.
The link that brought you here stopped working at the same moment, and any other new-password links are useless too.
If you did not ask for the change, ask for a new password straight away. The password does not give access to the contents of the archive: those are encrypted with your archive passphrase, which we neither know nor can recover.