Cannot install on Ubuntu 22.04.2 LTS

Fresh Ubuntu server

Following instructions here: Passbolt Help | Install Passbolt CE on Ubuntu 22.04

Step three yields the following result: sha512sum: No such file or directory FAILED open or read
sha512sum: WARNING: 1 listed file could not be read
“Bad checksum. Aborting”

Please advise

This sometimes happens. I think the typical approach is to try again later.