/usr/bin/gnome-disks:5:gdu_application_ensure_client:gdu_application_ensure_client:gdu_application_activate:g_closure_invoke:signal_emit_unlocked_R

The Ubuntu Error Tracker has been receiving reports about a problem regarding gnome-disk-utility. This problem was most recently seen with package version 3.30.2-3ubuntu1, the problem page at https://errors.ubuntu.com/problem/988860bf96eb09363e7a237e3d298b68404269bc 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/.