Here are some more logs that indicate an error:
47225 47225 2023-09-18 15:24:00 218.624 NXNODE WARNING! Process '/bin/ps --ppid 47776 -o pid=' with pid '48375/48375' finished with exit code 1 after 0,031 seconds.
47225 47225 2023-09-18 15:24:00 220.071 NXNODE ERROR! Cannot list children of '47776'.
47225 47225 2023-09-18 15:24:00 220.243 NXNODE WARNING! Cannot retrieve dbus session bus address.
I see that Cannot list children
error multiple times (each time I try to start a session)