if (strtolower($host) === strtolower($key[1])) {
if (strtoupper($this->package) === strtoupper($key[2])) {
return true;
} else {
$this->errors[] = __('The provided license key is invalid for this package (' . $key[2] . '). You are probably adding a license key for different extension or different platform version.');
}
}