Error observed in debug mode during theme live preview

When I have GTranslate v2.8.22 active, I see an error during theme live preview:

Notice: Undefined index: id_base in /var/www/wpdev/public/wp/wp-includes/class-wp-customize-widgets.php on line 496
Call Stack
#	Time	Memory	Function	Location
1	0.0002	380912	{main}( )	.../index.php:0
2	0.0005	381248	require( '/var/www/wpdev/public/wp/wp-blog-header.php' )	.../index.php:6
3	0.1935	8995584	wp( )	.../wp-blog-header.php:16
4	0.1935	8995584	WP->main( )	.../functions.php:955
5	0.1970	9087840	do_action_ref_array( )	.../class-wp.php:746
6	0.1970	9087840	WP_Hook->do_action( )	.../plugin.php:515
7	0.1970	9087840	WP_Hook->apply_filters( )	.../class-wp-hook.php:323
8	0.2197	9391864	WP_Customize_Widgets->customize_register( )	.../class-wp-hook.php:298

I have debug mode enabled on a development site. With GTranslate disabled I do not see this error.