processResult Error in YII_DEBUG

[dlavineway]

Debug output in vendor\zyx\zyx-phpmailer\Mailer.php (line 275, 276,277) causes the following error(s)
"PHP Notice 'yii\base\ErrorException' with message 'Array to string conversion'"

This is due to the fact that the array is multidimensional array not a single array like it is expecting

[
  0 => [ "[e-mail]", "First LastName"]
]