ERROR: apport (pid 5285) Fri Feb  2 10:12:51 2018: called for pid 930, signal 5, core limit 0, dump mode 1
ERROR: apport (pid 5285) Fri Feb  2 10:12:51 2018: executable: /usr/bin/gnome-shell (command line "/usr/bin/gnome-shell")
ERROR: apport (pid 5285) Fri Feb  2 10:12:51 2018: gdbus call error: Error connecting: Could not connect: Connection refused

ERROR: apport (pid 5285) Fri Feb  2 10:12:51 2018: debug: session gdbus call: 
ERROR: apport (pid 5285) Fri Feb  2 10:12:51 2018: apport: report /var/crash/_usr_bin_gnome-shell.120.crash already exists and unseen, doing nothing to avoid disk usage DoS