x2goserver doesn't work on Ubuntu 20.04 LTS

[neon-ninja]

TASK [x2goserver : repository | add x2go/stable (Ubuntu only, RHEL packages obtained from EPEL)] ****************************************************************************************************************
fatal: [sc-cer00359.its.auckland.ac.nz]: FAILED! => {"changed": false, "cmd": "apt-key adv --recv-keys --no-tty --keyserver hkp://keyserver.ubuntu.com:80 A7D8D681B1C07FE41499323D7CDE3A860A53F9FD", "msg": "Warning: apt-key output should not be parsed (stdout is not a terminal)\ngpg: keyserver receive failed: End of file", "rc": 2, "stderr": "Warning: apt-key output should not be parsed (stdout is not a terminal)\ngpg: keyserver receive failed: End of file\n", "stderr_lines": ["Warning: apt-key output should not be parsed (stdout is not a terminal)", "gpg: keyserver receive failed: End of file"], "stdout": "Executing: /tmp/apt-key-gpghome.IfLwJJ7cPt/gpg.1.sh --recv-keys --no-tty --keyserver hkp://keyserver.ubuntu.com:80 A7D8D681B1C07FE41499323D7CDE3A860A53F9FD\n", "stdout_lines": ["Executing: /tmp/apt-key-gpghome.IfLwJJ7cPt/gpg.1.sh --recv-keys --no-tty --keyserver hkp://keyserver.ubuntu.com:80 A7D8D681B1C07FE41499323D7CDE3A860A53F9FD"]}