Trouble after upgrading to 2.1 agent

Having problems getting a check-mk-agent_2.1.0p11-1_all.deb to run on a kali 2022.3 box.

# installing
apt install ./check-mk-agent_2.1.0p11-1_all.deb
# checking the services
systemctl status check-mk-agent-async.service
● check-mk-agent-async.service - Checkmk agent - Asynchronous background tasks
     Loaded: loaded (/lib/systemd/system/check-mk-agent-async.service; disabled; preset: disabled)
     Active: active (running) since Sat 2022-09-17 23:04:10 CEST; 2min 51s ago
   Main PID: 1119 (check_mk_agent)
      Tasks: 2 (limit: 4629)
     Memory: 1.5M
        CPU: 238ms
     CGroup: /system.slice/check-mk-agent-async.service
             ├─1119 /bin/bash /usr/bin/check_mk_agent
             └─1682 sleep 60

Sep 17 23:04:10 kali02red systemd[1]: Started Checkmk agent - Asynchronous background tasks.

The socket service can’t start.

systemctl status check-mk-agent.socket       
× check-mk-agent.socket - Local Checkmk agent socket
     Loaded: loaded (/lib/systemd/system/check-mk-agent.socket; enabled; preset: disabled)
     Active: failed (Result: exit-code) since Sat 2022-09-17 23:04:04 CEST; 3min 20s ago
     Listen: /run/check-mk-agent.socket (Stream)
   Accepted: 0; Connected: 0;
        CPU: 917us

Sep 17 23:04:04 kali02red systemd[1]: Starting Local Checkmk agent socket...
Sep 17 23:04:04 kali02red systemd[1115]: check-mk-agent.socket: Failed to resolve user cmk-agent: No such process
Sep 17 23:04:04 kali02red systemd[1]: check-mk-agent.socket: Control process exited, code=exited, status=217/USER
Sep 17 23:04:04 kali02red systemd[1]: check-mk-agent.socket: Failed with result 'exit-code'.
Sep 17 23:04:04 kali02red systemd[1]: Failed to listen on Local Checkmk agent socket.

Kali system is up-to-date and I already rebooted the box.
Any ideas??