Mac 11.7.6 Install Issue

I am a new user, just downloaded the BFD Player - Software & Core Library Installer. The dmg opened fine. But when I run the installer app I get the message “ALERT! Unable to automatically locate the installScript… Please find the file…”. So not being at all new to Mac tech stuff I pointed the file selection window to the open dmg, found the file it wanted, select and ran. It says it installed it. How ever the user end agreement was blank, and all the script did was create file structures but didn’t actually copy anything. I tried this a few times to no avail. So I sniffed out all of the pref files, folders, etc. and deleted them all. Downloaded a fresh copy of the installer. Same result. Any clues anyone?