It may just be that D-Bus gives a random name to the socket (à la 'mktemp').
That thread (on the French-speaking) is confusing. It conflates several
issues. In the end, it does not looks like anybody really understood the
problem that was solved by a reinstall.
Notice that the "GLib-GIO-CRITICAL" errors are not that critical. On my
system, which is working fine:
$
I am just explaining that the error message may have nothing to do with the
crashes the French-speaking users were going through since I have the exact
same error but my system is working fine.
Any backup to restore?