Error while pulling Airflow

[aravindh-c]

I'm getting error like ..

• buildDeps= freetds-dev libkrb5-dev libsasl2-dev libssl-dev libffi-dev libpq-dev git
• apt-get update -yqq
  W: Failed to fetch http://deb.debian.org/debian/dists/buster/InRelease Could not connect to prod.debian.map.fastly.net:80 (151.101.152.204). - connect (111: Connection refused) Could not connect to deb.debian.org:80 (199.232.22.133). - connect (111: Connection refused)
  W: Failed to fetch http://security.debian.org/debian-security/dists/buster/updates/InRelease Could not connect to prod.debian.map.fastly.net:80 (151.101.152.204). - connect (111: Connection refused) Could not connect to security.debian.org:80 (151.101.192.204). - connect (111: Connection refused) Could not connect to security.debian.org:80 (151.101.0.204). - connect (111: Connection refused) Could not connect to security.debian.org:80 (151.101.128.204). - connect (111: Connection refused) Could not connect to security.debian.org:80 (151.101.64.204). - connect (111: Connection refused)
  W: Failed to fetch http://deb.debian.org/debian/dists/buster-updates/InRelease Unable to connect to deb.debian.org:http:
  W: Some index files failed to download. They have been ignored, or old ones used instead.
• apt-get upgrade -yqq
• apt-get install -yqq --no-install-recommends freetds-dev libkrb5-dev libsasl2-dev libssl-dev libffi-dev libpq-dev git freetds-bin build-essential default-libmysqlclient-dev apt-utils curl rsync netcat locales
  E: Unable to locate package freetds-dev
  E: Unable to locate package libkrb5-dev
  E: Unable to locate package libsasl2-dev
  E: Unable to locate package libssl-dev
  E: Unable to locate package libffi-dev
  E: Unable to locate package libpq-dev
  E: Unable to locate package git
  E: Unable to locate package freetds-bin
  E: Unable to locate package build-essential
  E: Unable to locate package default-libmysqlclient-dev
  E: Package 'apt-utils' has no installation candidate
  E: Unable to locate package curl
  E: Unable to locate package rsync
  E: Unable to locate package netcat
  E: Package 'locales' has no installation candidate