Acymailing newsletter subscription in user account

-- url of the page with the problem -- : www.mangialarossa.com/index.php/subscription
-- HikaShop version -- : Hikashop 3.5.1
-- Joomla version -- : 3.8.7
-- PHP version -- : 7.0.3

Hi.

In the user account menu, I had acymailing subscription link to let user change his/her newsletter subscription preferences. I have 2 issues:
1: when user click on the bottom "export my data", a strange message is displayed (please see attachment). It is not possible the user to download his data. Why?
2. when the user changes his preferences for newsletter subscriptions from "yes" to "no", nothing happens and the same strange message is displayed. Why?

Thanks in advance
Imma

Hi,

These questions are relative to AcyMailing, not HikaShop, so you should contact the support of AcyMailing.
That error indicates that the URL of the form on that page uses HTTP instead of HTTPS. It's not really a problem for such form but lately, browsers are trying to move everyone to HTTPS all the time to improve security overhaul.