Pull MetaBox Settings Page fields using PHP

I'm rebuilding an ACF site using MetaBox and I'm having trouble pulling data from the settings page using PHP.

In ACF, I could use the following simple line to pull an options page field:

$field = get_field( 'option_name', 'options' )

The only thing here I need to edit is the $variable and the 'option_name'

I'm trying to figure out the similar code with MetaBox. I did a google search and found https://metabox.io/get-field-settings/ ..so if I'm on the right track, I'm guessing I would need to use something like this:

$field = rwmb_get_field_settings( $field_id, array( 'object_type' => 'setting' ) );

However, it doesn't appear to be working.

I found another line of code with one more option that looks like this:

$field = rwmb_get_field_settings( $field_id, ['object_type' => 'setting'], 'site_option' );

So, I've replaced $field_id with my field_id and tried replacing 'site-option' with my settings page id (site-settings and/or mb_site-settings) with no luck.

Here's the exact code I'm using:

<?php 
$field = rwmb_get_field_settings( 'mh_website_name', ['object_type' => 'setting'], 'site-settings' );
echo ($field);
?>

Depending on what I try, I either get nothing on the front end, or the following error:

Warning: Array to string conversion in /var/www/mywebsite.com/htdocs/wp-content/themes/bricks/includes/elements/code.php(159) : eval()'d code on line 5
Array

For reference, the field I'm trying to grab (for testing purposes) is called mh_website_name. It lives in the Site Identity Tab of the Site Settings page.

Relevant PHP from my settings page"

function your_prefix_function_name( $settings_pages ) {
	$settings_pages[] = [
        'menu_title' => __( 'Site Settings', 'your-text-domain' ),
        'id'         => 'site-settings',
        'position'   => 80,
        'style'      => 'no-boxes',
        'columns'    => 1,
        'tabs'       => [
            'mh_settings_site_identity' => 'Site Identity',

Relevant PHP from the custom field in question:

<?php
add_filter( 'rwmb_meta_boxes', 'your_prefix_function_name' );

function your_prefix_function_name( $meta_boxes ) {
    $prefix = '';

    $meta_boxes[] = [
        'title'          => __( 'Site Settings - Site Identity', 'your-text-domain' ),
        'id'             => 'site-settings',
        'settings_pages' => ['site-settings'],
        'tab'            => 'mh_settings_site_identity',
        'fields'         => [
            [
                'name'              => __( 'Website Name:', 'your-text-domain' ),
                'id'                => $prefix . 'mh_website_name',
                'type'              => 'text',
                'label_description' => __( '[mh_website_name,option]', 'your-text-domain' ),
                'desc'              => __( 'Please enter the legal website name. This will be used throughout the site in dynamic data fields.', 'your-text-domain' ),
                'std'               => 'Website Name',
                'required'          => true,
            ],