I did "wget" of the link you have posted in the first post and I unzipped the zip file in the plugins directory.
I am showing 2,673 files.
Tried. No luck.
In the "/plugins/live_chat/vendors/blc/settings" directory, I have:
BlestaLiveChat.sql
_settings.ini.php
There is no "settings.ini.php" file.
When I copy _settings.ini.php to settings.ini.php, no errors show up, I just get a blank page. I have also uninstalled and re-installed the plugin and still get the same results.
Any help would be greatly appreciated. Thank you in advance!