ReferenceError: elementorDevTools is not defined

I fixed it by myself.

There are 2 methods:
1, Rollback elementor 3.7.x to elementor 3.6.8

2, Modify Elementor Custom Skin php files

change code elementor/widgets/widgets_registered to elementor/widgets/register

change code

public function init_widgets() {

		// Include Widget files
		require_once( __DIR__ . '/widgets/loop-item.php' );

		// Register widget
		\Elementor\Plugin::instance()->widgets_manager->register_widget_type( new \Ele_Custom_Loop_Item_Widget() );

	}

to

public function init_widgets($widgets_manager) {

		// Include Widget files
		require_once( __DIR__ . '/widgets/loop-item.php' );

		// Register widget
		$widgets_manager->register( new \Ele_Custom_Loop_Item_Widget() );

	}

Thank you,

We aren’t using your plugin, but rolling back to 3.6.8 fixed this issue on our installation as well.

thank you. It worked for us as well. Have you reported it to Elementor team?