Error :The pageroot in your config "/lists" does not match the current location ""

Hi everyone,
I have a Phplist position error.
I install Phplist on centos 7. With apache and location is /var/www/html/lists
when I login in http://website.com/lists/admin then it works. I try to change the link become http://website.com then it notication the error: The page root in your config “/lists” does not match the current location “”. Check your config file.
I see very many people meet this case. I try the change page root on config.php, but it not work.
Please help me to fix it.
Thank you very much