Server failure when connecting to keyserver

[Acr515]

When I reached the Trust Debian section of the Raspbian Buster setup article, I wasn't able to add the Debian keys. My console output is below- it also indicates that apt-key is outdated:

$ sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 04EE7237B7D453EC 648ACFD622F3D138
Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).
Executing: /tmp/apt-key-gpghome.aDVAEfX9vR/gpg.1.sh --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 04EE7237B7D453EC 648ACFD622F3D138
gpg: keyserver receive failed: Server indicated a failure