Hi Neville, 
Hmm, I´m afraid I´m running out of ideas. 
I´ve no idea if it helps at all but for a more complete overview of what might be achieved by employing journalctl you could take a look at
journalctl › systemd › Wiki › ubuntuusers.de .
If you have installed the TranslateLocally add-on in your (firefox) browser [see:
TranslateLocally as firefox add-on - Tutorials & Resources - It’s FOSS Community ]
you could display the page in English…
Sorry that I can´t me of more help.
Many greetings from Rosika 
P.S.:
I don´t know what exactly you are looking for, Neville, but if the issue was covered by the kernel´s ring buffer logs you could take a look at
https://www.howtogeek.com/449335/how-to-use-the-dmesg-command-on-linux/ ,
which provides a great overview of the dmesg command.