D:
You didn't install JUST the CONTENTS of the Installation folder, you actually installed the entire folder you downloaded.
Try deleting everything (except cgi-bin) and JUST uploading the CONTENTS of the Installation folder :3
Look, I found the installation link 8D
http://lacuna.x10.mx/Mys122/Installation/install/
But I recommend not using it, you need to get the files fixed first otherwise, your adoptable script won't run on lacuna.x10mx but on lacuna.x10.mx/mys122