(xfce4-session:3658): xfce4-session-WARNING **: 08:15:43.320: xfsm_manager_load_session: Something wrong with /home/xubuntu/.cache/sessions/xfce4-session-xubuntu:0, Does it exist? Permissions issue? (wrapper-2.0:3789): GLib-GIO-CRITICAL **: 08:15:44.799: g_file_new_for_path: assertion 'path != NULL' failed (wrapper-2.0:3789): GLib-GIO-CRITICAL **: 08:15:44.799: g_file_monitor_file: assertion 'G_IS_FILE (file)' failed (wrapper-2.0:3789): GLib-GObject-WARNING **: 08:15:44.799: invalid (NULL) pointer instance (wrapper-2.0:3789): GLib-GObject-CRITICAL **: 08:15:44.799: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed (wrapper-2.0:3789): Gtk-WARNING **: 08:15:44.799: Attempting to add a widget with type GtkToggleButton to a container of type XfcePanelPlugin, but the widget is already inside a container of type XfcePanelPlugin, please remove the widget from its existing container first. (wrapper-2.0:3789): Gtk-WARNING **: 08:15:44.937: Negative content width -3 (allocation 1, extents 2x2) while allocating gadget (node button, owner GtkToggleButton) (wrapper-2.0:3787): Gtk-WARNING **: 08:15:44.939: Negative content width -3 (allocation 1, extents 2x2) while allocating gadget (node button, owner GtkToggleButton) (wrapper-2.0:3798): xfce4-power-manager-plugin-WARNING **: 08:15:45.070: Xfce4-power-manager: The panel plugin is present, so the tray icon gets disabled. (wrapper-2.0:3799): Gtk-WARNING **: 08:15:45.091: Negative content width -3 (allocation 1, extents 2x2) while allocating gadget (node button, owner PulseaudioButton) (wrapper-2.0:3798): Gtk-WARNING **: 08:15:45.169: Negative content width -3 (allocation 1, extents 2x2) while allocating gadget (node button, owner PowerManagerButton) (polkit-gnome-authentication-agent-1:3837): GLib-CRITICAL **: 08:15:45.491: g_variant_new_string: assertion 'string != NULL' failed (polkit-gnome-authentication-agent-1:3837): polkit-gnome-1-WARNING **: 08:15:45.497: Failed to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files (nm-applet:3836): Gtk-WARNING **: 08:15:45.761: Can't set a parent on widget which has a parent (xfwm4:4012): Gdk-ERROR **: 08:16:42.496: The program 'xfwm4' received an X Window System error. The error was 'BadWindow (invalid Window parameter)'. (Details: serial 6489 error_code 3 request_code 130 (SHAPE) minor_code 3) (nm-applet:3836): Gtk-CRITICAL **: 08:16:46.991: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed (nm-applet:3836): Gtk-CRITICAL **: 08:16:46.994: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed (nm-applet:3836): Gtk-WARNING **: 08:16:46.997: Can't set a parent on widget which has a parent (nm-applet:3836): Gtk-CRITICAL **: 08:16:47.026: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed (nm-applet:3836): Gtk-CRITICAL **: 08:16:47.026: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed (nm-applet:3836): Gtk-WARNING **: 08:16:47.027: Can't set a parent on widget which has a parent (nm-applet:3836): Gtk-CRITICAL **: 08:16:48.192: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed (nm-applet:3836): Gtk-CRITICAL **: 08:16:48.192: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed (nm-applet:3836): Gtk-WARNING **: 08:16:48.193: Can't set a parent on widget which has a parent (nm-applet:3836): Gtk-CRITICAL **: 08:16:48.330: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed (nm-applet:3836): Gtk-CRITICAL **: 08:16:48.330: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed (nm-applet:3836): Gtk-WARNING **: 08:16:48.332: Can't set a parent on widget which has a parent