#0  0x000055db27c2df87 in cc_panel_get_title_widget (panel=0x55db28312590) at ../shell/cc-panel.c:227
  222: GtkWidget *
  223: cc_panel_get_title_widget (CcPanel *panel)
  224: {
  225:   CcPanelClass *class = CC_PANEL_GET_CLASS (panel);
  226: 
  227:   if (class->get_title_widget)
  228:     return class->get_title_widget (panel);
  229: 
  230:   return NULL;
  231: }
  232: 
#1  0x000055db27c31386 in activate_panel (gicon=<optimized out>, visibility=<optimized out>, name=0x55db2872a460 "Konta online", parameters=0x55db28e6e0a0, id=0x7f2d0007d600 "online-accounts", self=0x55db289203d0) at ../shell/cc-panel.h:50
  45:  */
  46: typedef void (*CcPanelStaticInitFunc) (void);
  47: 
  48: 
  49: #define CC_TYPE_PANEL (cc_panel_get_type())
  50: G_DECLARE_DERIVABLE_TYPE (CcPanel, cc_panel, CC, PANEL, GtkBin)
  51: 
  52: /**
  53:  * CcPanelVisibility:
  54:  *
  55:  * @CC_PANEL_HIDDEN: Panel is hidden from search and sidebar, and not reachable.
#2  set_active_panel_from_id (self=0x55db289203d0, start_id=0x7f2d0007d600 "online-accounts", parameters=0x55db28e6e0a0, add_to_history=1, force_moving_to_the_panel=1, error=<optimized out>) at ../shell/cc-window.c:445
  440:                       COL_GICON, &gicon,
  441:                       COL_VISIBILITY, &visibility,
  442:                       -1);
  443: 
  444:   /* Activate the panel */
  445:   activated = activate_panel (self, start_id, parameters, name, gicon, visibility);
  446: 
  447:   /* Failed to activate the panel for some reason, let's keep the old
  448:    * panel around instead */
  449:   if (!activated)
  450:     {
#3  0x000055db27c2c223 in launch_panel_activated (action=<optimized out>, parameter=<optimized out>, user_data=<optimized out>) at ../shell/cc-application.c:109
  104: 
  105:   g_debug ("gnome-control-center: 'launch-panel' activated for panel '%s' with %"G_GSIZE_FORMAT" arguments",
  106:            panel_id,
  107:            g_variant_n_children (parameters));
  108: 
  109:   if (!cc_shell_set_active_panel_from_id (CC_SHELL (self->window), panel_id, parameters, &error))
  110:     g_warning ("Failed to activate the '%s' panel: %s", panel_id, error->message);
  111: 
  112:   /* Now present the window */
  113:   g_application_activate (G_APPLICATION (self));
  114: }
#4  0x00007f2d1d13a802 in g_closure_invoke () from /tmp/apport_sandbox_kwp_osdr/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.6303.0
#5  0x00007f2d1d14e814 in signal_emit_unlocked_R () from /tmp/apport_sandbox_kwp_osdr/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.6303.0
#6  0x00007f2d1d159b9e in g_signal_emit_valist () from /tmp/apport_sandbox_kwp_osdr/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.6303.0
#7  0x00007f2d1d15a0d3 in g_signal_emit () from /tmp/apport_sandbox_kwp_osdr/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.6303.0
#8  0x00007f2d1d270b95 in g_simple_action_activate (action=0x55db2857a800, parameter=0x7f2d00063d80) at ../../../gio/gsimpleaction.c:225
  [Error: gsimpleaction.c was not found in source tree]
#9  0x00007f2d1d26f0a1 in g_action_activate (action=0x55db2857a800, parameter=0x7f2d00063d80) at ../../../gio/gaction.c:397
  [Error: gaction.c was not found in source tree]
#10 0x00007f2d1d264c78 in g_application_exported_actions_activate_action_full (remote=0x55db2890dc10, action_name=0x7f2d0007d5f0 "launch-panel", parameter=0x7f2d00063d80, platform_data=0x7f2d00056a10) at ../../../gio/gapplication.c:330
  [Error: gapplication.c was not found in source tree]
#11 0x00007f2d1d26d4d2 in org_gtk_Actions_method_call (connection=<optimized out>, sender=sender@entry=0x55db28e0fb80 ":1.126", object_path=object_path@entry=0x7f2d0007d740 "/org/gnome/ControlCenter", interface_name=interface_name@entry=0x7f2d0007cf50 "org.gtk.Actions", method_name=method_name@entry=0x55db2885cb30 "Activate", parameters=parameters@entry=0x55db28a9e4c0, invocation=0x7f2d0004b2b0, user_data=0x55db2890f760) at ../../../gio/gactiongroupexporter.c:440
  [Error: gactiongroupexporter.c was not found in source tree]
#12 0x00007f2d1d293564 in call_in_idle_cb (user_data=<optimized out>) at ../../../gio/gdbusconnection.c:4878
  [Error: gdbusconnection.c was not found in source tree]
#13 0x00007f2d1d04ed9e in g_main_context_dispatch () from /tmp/apport_sandbox_kwp_osdr/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.6303.0
#14 0x00007f2d1d04f150 in g_main_context_iterate.isra () from /tmp/apport_sandbox_kwp_osdr/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.6303.0
#15 0x00007f2d1d04f1f3 in g_main_context_iteration () from /tmp/apport_sandbox_kwp_osdr/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.6303.0
#16 0x00007f2d1d267c75 in g_application_run (application=0x55db288fe990, argc=<optimized out>, argv=<optimized out>) at ../../../gio/gapplication.c:2559
  [Error: gapplication.c was not found in source tree]
#17 0x000055db27c2b659 in main (argc=<optimized out>, argv=<optimized out>) at ../shell/main.c:70
  65: 
  66:   initialize_dependencies (&argc, &argv);
  67: 
  68:   application = cc_application_new ();
  69: 
  70:   return g_application_run (G_APPLICATION (application), argc, argv);
  71: }