Hi,
I've made changes in classes/Mail.php in order to change mail subjects. I've commented out this line:
$subject = '['.Configuration::get('PS_SHOP_NAME', null, null, $idShop).'] '.$subject;
My aim was to send emails without shop name in brackets. Unfortunately, email subjects are still the same... How do I clear the PrestaShop class Cache?
EDIT: I've realised that it is not fault of the cache.