Hello,
There's no translation key for that error message as it's generally used to set up and configure your payment method.
If you want to edit that error message, you'll have to edit the code of the file "\plugins\hikashoppayment\authorize\authorize.php" and change these lines :
if(empty($post_response)){
$this->app->enqueueMessage('The connection to the payment plateform did not succeed. It is often caused by the hosting company blocking external connections so you should contact him for further guidance. The cURL error message was: '.curl_error($request),'error');
$do = false;
return false;
}
Kind regards,
Mohamed.