Hi,
I am not sure where you were able to download SmartFox Lite as the product was launched over 15 years ago and rapidly supplanted by the SmartFoxServer Basic and Pro, which are also very old and surpassed.
These days our main game server is SmartFoxServer 2X which is available here:
https://www.smartfoxserver.com/download#p=installer
and you can use for free with a license for 100 CCU (and if you need more you can buy a commercial license).
I would highly recommend to download this product instead as it is well supported and works with all major client platforms.
Cheers