In reply to Warning!!! can not get write access to config
Below is the legacy version of the Boonex site, maintained for Dolphin.Pro 7.x support.
The new Dolphin solution is powered by UNA Community Management System.
The new Dolphin solution is powered by UNA Community Management System.
It seems like inc/header.inc.php and periodic/periodic.file already existed before you commenced on a new installation.
In your case it's completely harmless to delete these files at all and re-install Dolphin.