/usr/bin/gnome-shell:11:g_type_check_instance_is_a:clutter_actor_remove_effect:st_scroll_view_dispose:g_object_unref:GjsAutoPointer

The Ubuntu Error Tracker has been receiving reports about a problem regarding gnome-shell. This problem was most recently seen with package version 44.0-2ubuntu3, the problem page at https://errors.ubuntu.com/problem/2f53716bb3ca1e3811b8531860cbf8801dd12505 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/.