oddly enough I see you posting the domain is working so I try again and it works!
Executing package manager
Downloading https://downloads.openwrt.org/releases/21.02.0/targets/x86/64/packages/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_core
Downloading https://downloads.openwrt.org/releases/21.02.0/targets/x86/64/packages/Packages.sig
Signature check passed.
Downloading https://downloads.openwrt.org/releases/21.02.0/packages/x86_64/base/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_base
Downloading https://downloads.openwrt.org/releases/21.02.0/packages/x86_64/base/Packages.sig
Signature check passed.
Downloading https://downloads.openwrt.org/releases/21.02.0/packages/x86_64/luci/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_luci
Downloading https://downloads.openwrt.org/releases/21.02.0/packages/x86_64/luci/Packages.sig
Signature check passed.
Downloading https://downloads.openwrt.org/releases/21.02.0/packages/x86_64/packages/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_packages
Downloading https://downloads.openwrt.org/releases/21.02.0/packages/x86_64/packages/Packages.sig
Signature check passed.
Downloading https://downloads.openwrt.org/releases/21.02.0/packages/x86_64/routing/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_routing
Downloading https://downloads.openwrt.org/releases/21.02.0/packages/x86_64/routing/Packages.sig
Signature check passed.
Downloading https://downloads.openwrt.org/releases/21.02.0/packages/x86_64/telephony/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_telephony
Downloading https://downloads.openwrt.org/releases/21.02.0/packages/x86_64/telephony/Packages.sig
Signature check passed.