I have had a visitor that put its name like "Lastname, Firstname". Because of the comma splitting in Settings.php it makes two names out of it (with one email). It gives me this error:
ValueError: array_fill(): Argument #2 ($count) must be greater than or equal to 0
File "/app/vendor/miranj/craft-contact-form-tuner/src/models/Settings.php", line 117, in array_fill
$names = array_merge($names, array_fill(0, count($emails) - count($names), ''));
File "/app/vendor/miranj/craft-contact-form-tuner/src/models/Settings.php", line 117, in miranj\contactformtuner\models\Settings::prepEmailConfig
$names = array_merge($names, array_fill(0, count($emails) - count($names), ''));
File "/app/vendor/miranj/craft-contact-form-tuner/src/models/Settings.php", line 54, in miranj\contactformtuner\models\Settings::getCcConfig
$emails = $this->prepEmailConfig($this->ccEmail, $this->ccName);