We do have a newer version of the script at the downloads.ottomatic.cloud url, but I left the older script version on appupdates to make sure it didn’t break like this. The appupdates url still resolves to the proper install script on my side. Thanks!
Thats strange, probably a DNS issue or something. I would recommend switching to the downloads.ottomatic.cloud url, it should have a faster download time, better coverage, and the script there is more updated than the appupdates one.