Zerif lite child theme error

I keep getting this message when running my zerif lite child theme:

Parse error: syntax error, unexpected T_FUNCTION in /websites/123reg/LinuxPackage23/no/vo/_u/novo.uk.com/public_html/wp-content/themes/zerif-pro-child/functions.php on line 9

Which is this part:

add_filter( 'pre_update_option_theme_mods_' . get_stylesheet(), function ( $value, $old_value ) {

Whole php:

<?php
add_action( 'wp_enqueue_scripts', 'child_enqueue_styles',99);
function child_enqueue_styles() {
    $parent_style = 'parent-style';
    wp_enqueue_style( $parent_style, get_template_directory_uri() . '/style.css' );
	 wp_enqueue_style( 'child-style',get_stylesheet_directory_uri() . '/custom.css', array( $parent_style ));
}
if ( get_stylesheet() !== get_template() ) {
    add_filter( 'pre_update_option_theme_mods_' . get_stylesheet(), function ( $value, $old_value ) {
         update_option( 'theme_mods_' . get_template(), $value );
         return $old_value; // prevent update to child theme mods
    }, 10, 2 );
    add_filter( 'pre_option_theme_mods_' . get_stylesheet(), function ( $default ) {
        return get_option( 'theme_mods_' . get_template(), $default );
    } );
}
?>

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I set the site up on a dev site, and it worked fine. Moved it now getting this error code