How can the issue of "Error: Language string failed to load" be resolved when using PHP mailer?

The issue of "Error: Language string failed to load" in PHP mailer can be resolved by ensuring that the language files are properly included in the script. This error occurs when the language files are not found or cannot be loaded by the PHP mailer library. To fix this issue, make sure that the language files are in the correct directory and are correctly referenced in the script.

// Include the language file for PHP mailer
require 'path/to/language/phpmailer.lang-en.php';

// Initialize PHP mailer with the language file
$mail = new PHPMailer();
$mail->setLanguage('en', 'path/to/language/');

// Rest of the PHP mailer code goes here