Error in settings

[karanmathew03]

I am getting this when I open settings
`
The settings of extension blur-me@nunchucks had an error:

TypeError: this._sigma_scale is null

Stack trace:

_init@/home/admin/.local/share/gnome-shell/extensions/blur-me@nunchucks/prefs.js:36:7
buildPrefsWidget@/home/admin/.local/share/gnome-shell/extensions/blur-me@nunchucks/prefs.js:165:10
_init@resource:///org/gnome/Shell/Extensions/js/extensionsService.js:207:40
OpenExtensionPrefsAsync/<@resource:///org/gnome/Shell/Extensions/js/extensionsService.js:122:28
asyncCallback@resource:///org/gnome/gjs/modules/core/overrides/Gio.js:132:22
run@resource:///org/gnome/Shell/Extensions/js/dbusService.js:177:20
main@resource:///org/gnome/Shell/Extensions/js/main.js:19:13
run@resource:///org/gnome/gjs/modules/script/package.js:222:19
start@resource:///org/gnome/gjs/modules/script/package.js:206:8
@/usr/share/gnome-shell/org.gnome.Shell.Extensions:1:17

`

[adxl]

Same error for me.

It's coming from this snippet in prefs.js:

...

class BlurMePrefsWidget extends Gtk.Box {
    _init(params = {}) {
      super._init(params);

      // ! sigma
      this._sigma_scale.set_value(config.SIGMA.get());    <-------- here

      // ! brightness
      this._brightness_scale.set_value(config.BRIGHTNESS.get());

      // ! blur dash
      this._blur_dash.set_active(config.BLUR_DASH.get());

      ...
}

Also happens with the other properties if the previous one is commented out.