php/ajax script doesn't work anymore after server moving

a freelancer developed for us an accounting Ebay Web application, that we've call MAD (My Auction Data)

unfortunately, we lose any contact with him and actually, after moving to a new server, the application doesn't work anymore

apps require a SSL (already done) and a Ebay Developer Key (already done)

old server had a Plesk Panel (old root /httpdocs) and Actual server has a Cpanel (actual root /public_html)

we will give full access to domain and script to work as well it's possible

in this little video you can see what this app can do

[url removed, login to view]

MAD require a connection with Ebay developer center to work, and these data are already inside the script

Ingegneria MySQL PHP Gestione Progetti Architettura Software Testare Software

Rif. progetto: #3756748

Info sul progetto