/usr/bin/python3.6:5:g_settings_set_property:object_set_property:g_object_new_internal:g_object_newv:pygobject_constructv

The Ubuntu Error Tracker has been receiving reports about a problem regarding python3.6. This problem was most recently seen with package version 3.6.5-3, the problem page at https://errors.ubuntu.com/problem/e71c9843be17aa84ba01fa082527a5208c23a72e 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/.