Blackbox_exporter installation on raspberry pi 4 - failed to start

Following the instructions found here, I used blackbox_exporter-0.19.0.freebsd-armv7.tar.gz

��� blackbox.service - Blackbox Exporter Service
     Loaded: loaded (/lib/systemd/system/blackbox.service; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Fri 2022-01-14 13:52:51 GMT; 16s ago
    Process: 10857 ExecStart=/usr/local/bin/blackbox_exporter --config.file=/etc/blackbox/blackbox.yml --web.listen->
   Main PID: 10857 (code=exited, status=2)
        CPU: 16ms

Jan 14 13:52:51 rl-pi4 systemd[1]: blackbox.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Jan 14 13:52:51 rl-pi4 systemd[1]: blackbox.service: Failed with result 'exit-code'.
Jan 14 13:52:51 rl-pi4 systemd[1]: blackbox.service: Scheduled restart job, restart counter is at 5.
Jan 14 13:52:51 rl-pi4 systemd[1]: Stopped Blackbox Exporter Service.
Jan 14 13:52:51 rl-pi4 systemd[1]: blackbox.service: Start request repeated too quickly.
Jan 14 13:52:51 rl-pi4 systemd[1]: blackbox.service: Failed with result 'exit-code'.
Jan 14 13:52:51 rl-pi4 systemd[1]: Failed to start Blackbox Exporter Service.

How do I get Blackbox Exporter running on my Pi 4?

Thank you.