this._config is undefined

[i3130002]

I went away for a couple of minutes and my monitor went black, after coming back it seems I have an error in rocketbar extension.
might be nothing of important.

[ChepKun]

Hey, thanks for your report!
If it comes again, please run journalctl -o cat /usr/bin/gnome-shell > debug.txt to collect debug info, and attach it here, thanks!

[sallesricardo]

I guess this part of the journal can help.

Object .Gjs_ui_panelMenu_PanelMenuButton (0x55b6b155a440), has been already disposed — impossible to access it. This might be caused by the object having been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs.
g_signal_handler_disconnect: assertion 'handler_id > 0' failed
.
.
.
g_signal_handler_disconnect: assertion 'handler_id > 0' failed
JS ERROR: Extension rocketbar@chepkun.github.com: TypeError: this._config is undefined
_handleLockScreen@/home/ricardo/.local/share/gnome-shell/extensions/rocketbar@chepkun.github.com/shell/tweaks.js:578:43
destroy@/home/ricardo/.local/share/gnome-shell/extensions/rocketbar@chepkun.github.com/shell/tweaks.js:69:14
disable@/home/ricardo/.local/share/gnome-shell/extensions/rocketbar@chepkun.github.com/extension.js:56:25
_callExtensionDisable@resource:///org/gnome/shell/ui/extensionSystem.js:124:32
_onEnabledExtensionsChanged/<@resource:///org/gnome/shell/ui/extensionSystem.js:539:45
_onEnabledExtensionsChanged@resource:///org/gnome/shell/ui/extensionSystem.js:539:24
_sessionUpdated@resource:///org/gnome/shell/ui/extensionSystem.js:665:14
_emit@resource:///org/gnome/gjs/modules/core/_signals.js:114:47
_sync@resource:///org/gnome/shell/ui/sessionMode.js:206:14
pushMode@resource:///org/gnome/shell/ui/sessionMode.js:165:14
activate@resource:///org/gnome/shell/ui/screenShield.js:654:34
lock@resource:///org/gnome/shell/ui/screenShield.js:700:14
_onStatusChanged/this._lockTimeoutId<@resource:///org/gnome/shell/ui/screenShield.js:328:26