/usr/bin/gnome-shell:11:meta_monitor_get_outputs:meta_monitor_config_manager_assign:meta_monitor_manager_xrandr_apply_monitors_config:meta_monitor_manager_apply_monitors_config:restore_previous_config

The Ubuntu Error Tracker has been receiving reports about a problem regarding gnome-shell. This problem was most recently seen with package version 3.36.0-2ubuntu2, the problem page at https://errors.ubuntu.com/problem/50192237f22f17593e486f3349bf4770a1e28002 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.