File manager admin anomaly

[Roby_rsm]

Hi, I have a problem in the back office that occurs when SSL encryption is enabled. In these conditions, in the file management window, it is no longer possible:

- filters the name of the file searched, by clicking on the button nothing happens;
- choose an order type (name, date ...), reloading nothing happens.

If you disable SSL, everything works perfectly.

The site was created by purchasing a theme (compatible with prestashop 1.7.5.1) on the official prestashop website and tested first locally and then on a test hosting.

My technical knowledge is rather limited, I deal with pagination, basic modifications and site management, so I turned to the theme developer and our supplier, but both didn't give me an explanation.

Someone who has encountered the same problem and has indications on this?

Thank you

[Roby_rsm]

Analyzing the page code with "firefox developer" i noticed that the url linked to the file manager sections that do not work properly contains "http".
By changing it to "https" everything returns to work correctly.
The link leads to: Admin/manager/dialog.php
I looked at the file dialog.php, the problem should be in the rows of the attachment, perhaps three lines 350-325.
I await a reply, thanks