在 M1 下通过 phpsrotm 调试，求教 dedecms 后台登录问题

M1 下安装了 PHP8，通过 phpstorm 调试 dedecms v5.7，在登录后台页面的时候报如下错误：

Fatal error: Uncaught Error: mysqli object is not fully initialized in /opt/homebrew/var/www/include/dedesqli.class.php:119 Stack trace: #0 /opt/homebrew/var/www/include/dedesqli.class.php(119): mysqli_errno(Object(mysqli)) #1 /opt/homebrew/var/www/include/dedesqli.class.php(78): DedeSqli->Open(false) #2 /opt/homebrew/var/www/include/dedesqli.class.php(296): DedeSqli->Init(false) #3 /opt/homebrew/var/www/include/userlogin.class.php(249): DedeSqli->Execute() #4 /opt/homebrew/var/www/dd/login.php(74): userLogin->checkUser('admin', 'admin') #5 {main} thrown in /opt/homebrew/var/www/include/dedesqli.class.php on line 119

找了好长时间的资料还是没找到解决方法。求助各位大佬。