Hello,

Thank you for reaching out to us!

1. This is a WordPress bug, so we would recommend installing the free Classic widgets plugin to solve it. We hope they would fix it soon as possible.

https://wordpress.org/plugins/classic-widgets/

2. Please enter the below code to the functions.php file in the child theme, the updated file should start to work after it.

if ( ! function_exists( 'woodmart_get_element_template' ) ) {
	/**
	 * Loads a template part into a template.
	 *
	 * @since 6.1.0
	 *
	 * @param string $element_name  Template name.
	 * @param array  $args          Arguments.
	 * @param string $template_name Module name.
	 */
	function woodmart_get_element_template( $element_name, $args, $template_name ) {
		if ( ! empty( $args ) && is_array( $args ) ) {
			extract( $args ); // phpcs:ignore
		}

		include get_theme_file_path( '/inc/template-tags/elements/' . $element_name . '/' . $template_name );
	}
}

Please feel welcome to reach out to me with any questions you may have and I would be more than happy to help.

Kind Regards