/usr/bin/gnome-shell:gnome-shell: ../../src/xcb_io.c:260: poll_for_event: \320\237\321\200\320\276\320\262\320\265\321\200\320\276\321\207\320\275\320\276\320\265 \321\203\321\202\320\262\320\265\321\200\320\266\320\264\320\265\320\275\320\270\320\265 \302\253!xcb_xlib_threads_sequence_lost\302\273 \320\275\320\265 \320\262\321\213\320\277\320\276\320\273\320\275\320\265\320\275\320\276.

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding gnome-shell. This problem was most recently seen with package version 3.36.1-5ubuntu2, the problem page at https://errors.ubuntu.com/problem/4b78bc9730e8681f0c42fc2ecea14d03544394f0 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/.