I have installed Prestashop 18.104.22.168 from APS installer. It only asked me to set an administrator password. The installation was complete. However, when I accessed the newly created prestashop admin panel, it required me to input the administrator email address which was absent during the installation. So my question is: what is the default admin address of Prestashop set by APS installer? My ISPConfig version is 3.1.7.