Could not load database file DB_DRIVER! in error

[nev]

Trying to install but keep getting an
10000::database error
Error: Could not load database file DB_DRIVER! in /home1/******/public_html/core/lib/db.php on line 49

[Basara]

Hello.
Please search forum http://forum.abantecart.com/index.php/topic,5439.msg23408.html#msg23408

[nev]

Same Issue but not sure how to fix it