/usr/bin/lxpanel:11:IA__gtk_container_foreach:place_in_menu:entry_added:g_closure_invoke:signal_emit_unlocked_R

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding lxpanel. This problem was most recently seen with package version 0.9.3-1ubuntu3, the problem page at https://errors.ubuntu.com/problem/63131f551d1d01f2176117324ae68b073a612512 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/.