Adapter \Typecho\Db\Adapter\SQLite is not available

Typecho\Db\Exception: Adapter \Typecho\Db\Adapter\SQLite is not available in /home/html/web/web14/var/Typecho/Db.php:115 Stack trace: #0 /home/html/web/web14/config.inc.php(21): Typecho\Db->__construct() #1 /home/html/web/web14/index.php(11): include_once('/home/html/web/...') #2 {main}