Unfortunately it doesn’t help.
The settings where as on your screenshot. All Modules selected, full permissions are set.
Anyway I’ve unset, and re-set it again, and save. Without luck.
Here is the output of the command you gave me:
# ls -lsh /etc/webmin/virtual-server/config
8.0K -rwx--x--x 1 root root 7.8K Jan 31 14:22 /etc/webmin/virtual-server/config
Yeehaaa!!!
I’ve updated Webmin now, because there was an update available for today, and now, the Sysinfo appears again.