Getting fatal error with Jetpack

Fatal error: Class ‘Jetpack_Tiled_Gallery_Layout’ not found in /yourHome/yourdomainhere/public_html/wp-content/plugins/jetpack/modules/tiled-gallery/tiled-gallery/tiled-gallery-rectangular.php on line 6

Lines 6-15 in “tiled-gallery-rectangualar.php”:

class Jetpack_Tiled_Gallery_Layout_Rectangular extends Jetpack_Tiled_Gallery_Layout {
	protected $type = 'rectangular';

	public function HTML( $context = array() ) {
		$grouper = new Jetpack_Tiled_Gallery_Grouper( $this->attachments );
		Jetpack_Tiled_Gallery_Shape::reset_last_shape();

		return parent::HTML( array( 'rows'  => $grouper->grouped_images ) );
	}
}