Could you tell me where I can find those logs?
I looked in /var/log/apache2/ and was greeted with multiple apache.log logs, most of which ended in .gz, I also had multiple nc-error logs and nc-access logs, both of which also mostly ended in .gz. I also had an ncp.log file in /var/log/.
I couldn’t work out where the dmesg logs are and I’m not entirely sure which logs you want, but I’ve attached the ones I think you want.
Nextcloud (I was unable to copy the full files as they are both over 1.5k lines long, so I’ve pasted small chunks, but this is basically what the whole file consists of, just repeated over and over again):