Thanks for answering Tom.7.1 is outdated, therefore we do not distribute this ISO anymore.
Why do you need an outdated ISO?
See https://enterprise.proxmox.com/iso/
i downloaded it as well, but same errorNot sure if this is too late but I ran into the same issue. I managed to find 7.1-1 here https://linuxtracker.org/index.php?...25178bcbdd8bf7e7e42a3ad4172e3a179d034e7&hit=1