从版本更新到直接打不开了提示这个登录后台

从12版本更新到4.3.13，直接打不开了，提示这个登录后台
Fatal error: Uncaught TypeError: Return value of CodeIgniter\Database\Database::initDriver() must be an instance of CodeIgniter\Database\object, instance of CodeIgniter\Database\MySQLi\Connection returned in /www/wwwroot/ww.ymtu.top/dayrui/System/Database/Database.php:183 Stack trace: #0 /www/wwwroot/ww.ymtu.top/dayrui/System/Database/Database.php(69): CodeIgniter\Database\Database->initDriver('MySQLi', 'CodeIgniter\\Dat...', Array) #1 /www/wwwroot/ww.ymtu.top/dayrui/System/Database/Config.php(87): CodeIgniter\Database\Database->load(Array, 'default') #2 /www/wwwroot/ww.ymtu.top/dayrui/Fcms/Core/Model.php(28): CodeIgniter\Database\Config::connect('default') #3 /www/wwwroot/ww.ymtu.top/dayrui/Fcms/Core/Service.php(154): Phpcmf\Model->__construct() #4 /www/wwwroot/ww.ymtu.top/dayrui/Fcms/Core/Service.php(210): Phpcmf\Service::model() #5 /www/wwwroot/ww.ymtu.top/dayrui/Fcms/Core/Service.php(98): Phpcmf\Service::M() #6 /www/wwwroot/ww.ymtu.top/dayrui/Fcms/Init.php(200): Phpcmf\Service::Log('critical', Object(ErrorException), in /www/wwwroot/ww.ymtu.top/dayrui/System/Database/Database.php on line 183