This sixtrack batch seems big and consistant....

sudo systemctl daemon-reload
sudo systemctl restart boinc-client

Job for boinc-client.service failed because the control process exited with error code.
See "systemctl status boinc-client.service" and "journalctl -xe" for details.

● boinc-client.service - Berkeley Open Infrastructure Network Computing Client
   Loaded: loaded (/etc/systemd/system/boinc-client.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Sat 2020-12-26 16:48:59 CET; 1min 4s ago
     Docs: man:boinc(1)
  Process: 1060 ExecStartPre=/bin/sh -c /bin/chmod +x /sbin/create-boinc-cgroup && /sbin/create-boinc-cgroup (code=exited, status=210/CHROOT)

dic 26 16:48:59 frodo systemd[1]: Starting Berkeley Open Infrastructure Network Computing Client...
dic 26 16:48:59 frodo systemd[1]: boinc-client.service: Control process exited, code=exited status=210
dic 26 16:48:59 frodo systemd[1]: Failed to start Berkeley Open Infrastructure Network Computing Client.
dic 26 16:48:59 frodo systemd[1]: boinc-client.service: Unit entered failed state.
dic 26 16:48:59 frodo systemd[1]: boinc-client.service: Failed with result 'exit-code'.

[...]
dic 26 16:48:40 frodo su[1045]: Successful su for root by yo
dic 26 16:48:40 frodo su[1045]: + /dev/pts/0 yo:root
dic 26 16:48:40 frodo su[1045]: pam_unix(su:session): session opened for user root by yo(uid=1000)
dic 26 16:48:40 frodo su[1045]: pam_systemd(su:session): Cannot create session: Already running in a session
dic 26 16:48:47 frodo systemd[1]: Reloading.
dic 26 16:48:48 frodo systemd[1]: apt-daily-upgrade.timer: Adding 7min 19.089474s random time.
dic 26 16:48:48 frodo systemd[1]: anacron.timer: Adding 14.782525s random time.
dic 26 16:48:48 frodo systemd[1]: apt-daily.timer: Adding 3h 28min 26.040214s random time.
dic 26 16:48:59 frodo systemd[1]: Starting Berkeley Open Infrastructure Network Computing Client...
-- Subject: Unit boinc-client.service has begun start-up
-- Defined-By: systemd
-- Support: https://www.debian.org/support
-- 
-- Unit boinc-client.service has begun starting up.
dic 26 16:48:59 frodo systemd[1060]: boinc-client.service: Failed at step CHROOT spawning /bin/sh: No such file or directory
-- Subject: Process /bin/sh could not be executed
-- Defined-By: systemd
-- Support: https://www.debian.org/support
-- 
-- The process /bin/sh could not be executed and failed.
-- 
-- The error number returned by this process is 2.
dic 26 16:48:59 frodo systemd[1]: boinc-client.service: Control process exited, code=exited status=210
dic 26 16:48:59 frodo systemd[1]: Failed to start Berkeley Open Infrastructure Network Computing Client.
-- Subject: Unit boinc-client.service has failed
-- Defined-By: systemd
-- Support: https://www.debian.org/support
-- 
-- Unit boinc-client.service has failed.
-- 
-- The result is failed.
dic 26 16:48:59 frodo systemd[1]: boinc-client.service: Unit entered failed state.
dic 26 16:48:59 frodo systemd[1]: boinc-client.service: Failed with result 'exit-code'.

Hey there,
Today we launched our latest citizen science project, and it's a real beauty!

On Higgs Hunters we need you to look through data from the ATLAS experiment at CERN's Large Hadron Collider, where protons are smashed together at one billion kilometres per hour in order to create new particles and give us a better understanding of the building blocks that make up our Universe.

Specifically we are asking you to search through roughly 90,000 images from the ATLAS detector for tiny sub-atomic explosions caused when a Higgs boson 'dies', which some scientists think could generate a new kind of particle, previously undetected.

Begin your search for new and exciting particles now at http://www.higgshunters.org

Thanks for your continued help and support,

Grant & the Zooniverse Team