MAMP到Live Server ::在load.php中找不到致命错误类'wpdb'

I'm trying to move my site from MAMP to the live server and I'm getting this error:

Fatal error: Class 'wpdb' not found in /data/folder_name/public_html/wp-includes/load.php on line 404

I went through the basic steps of moving everything. Created the Database, Imported my database, updated the wp-config.php and uploaded all of my files so I'm not sure what the issue is. I'm not even sure where to start.

Here is the code in load.php

/**
 * Load the database class file and instantiate the `$wpdb` global.
 *
 * @since 2.5.0
 *
 * @global wpdb $wpdb The WordPress database class.
 */
function require_wp_db() {
    global $wpdb;

    require_once( ABSPATH . WPINC . '/wp-db.php' );
    if ( file_exists( WP_CONTENT_DIR . '/db.php' ) )
        require_once( WP_CONTENT_DIR . '/db.php' );

    if ( isset( $wpdb ) )
        return;

    $wpdb = new wpdb( DB_USER, DB_PASSWORD, DB_NAME, DB_HOST );<--Line 404
}

Looks like it was an issue with the files loaded and nothing else. :-(