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Uncaught Error: Call to undefined method WPMailSMTP\Core::get_site_health() in /var/www/html/wp-content/plugins/wp-mail-smtp/src/Core.php:195

wp-config.php

<?php
define('WP_CONTENT_DIR', '/var/www/html/wp-content');
$table_prefix = getenv('TABLE_PREFIX') ?: 'wp_';
foreach ($_ENV as $key => $value) {
    $capitalized = strtoupper($key);
    if (!defined($capitalized)) {
        define($capitalized, $value);
    }
}

// wp-smtp
define( 'WPMS_ON', true );
define( 'WPMS_MAIL_FROM_FORCE', true );