Hi @abhijeet.patil,
As an FYI, we do not recommend using an external PostgreSQL server.
While it's technically possible to connect to an external PostgreSQL, we strongly advise against doing so. Not only does it require sufficient expertise in managing PostgreSQL servers and databases, but it generally has a negative impact on performance, increases the cost/complexity of your configuration, and leads to increased downtime.
You may also receive reduced support since we will not support most PostgreSQL-related issues when you're using an external server, including unique permission configurations, database monitoring agents, transaction replication, etc.
That said, this is exactly one of those scenarios we do not support (i.e. running commands like CREATE SCHEMA proget AUTHORIZATION proget). We're also not sure how to "fix" your database at this point, so hopefully it's something you can just recreate without running that command at first.
We do recommend just using embedded; the database tends to be relatively small (few hundred mbs usually, even with lots of packages).
Thanks,
Steve