After DirectAdmin is installed, the account and password cannot be logged in. It has been installed before, and then installed with automatic scriptIn which directory can I change the administrator account password
Did you mean after you logged in, it will revert back to login screen (without error login message)? With not much info from you right now, so I suspect this is related to the IPv6 rotation problem (https://www.directadmin.com/features.php?id=2834). This is a security feature that might prevent login. By default directadmin has this option disable_ip_check=0. So, try put this in directadmin.conf (just run below command in terminal):
Code:
/usr/local/directadmin/directadmin set disable_ip_check 1 restart