@faramirza I’m no longer with Canonical, and AFAIK @mvo under whose account the repository was published has also left.
I think @Igor @pedronis are still around and maybe they can move the repository to a different location such that the packages are publicly available and not tied to any particular account at p.c.c.
Just to be clear, if your business depends on having snapd available, it’s best to reach out to Amazon and request package inclusion into a separate extras library.