Ok this is all on the server, you have to go into your hosting account and edit the files on the server.
In the server, all the Modx stuff is within the public_html folder. Usually in this folder there is a /core folder, /connectors and then the manager folder, which maybe is manager or maybe is custom name like nuanswebsite or whatever, its better to customize the name of the manager for security, but you must be careful to make all the proper paths.
Some people will have the whole Modx in a subfolder, Julius I believe you have a structure like this, not sure about Marlore.
Generally, back to the public_html folder on the server side, the config files you need are in
core/config/config.inc.php (change the $modx_core_path variable)
/config.core.php (at the site root) (this one is in that public_html folder near the bottom)
/connectors/config.core.php
/manager/config.core.php
Let's get more info and figure out the right code to put in
Generally the paths when the site is *NOT* in a subfolder are something like this
if (!defined('MODX_CORE_PATH')) {
$modx_core_path= '/home/accountname/public_html/core/';
define('MODX_CORE_PATH', $modx_core_path);
}
if (!defined('MODX_PROCESSORS_PATH')) {
$modx_processors_path= '/home/accountname/public_html/core/model/modx/processors/';
define('MODX_PROCESSORS_PATH', $modx_processors_path);
}
if (!defined('MODX_CONNECTORS_PATH')) {
$modx_connectors_path= '/home/accountname/public_html/connectors/';
$modx_connectors_url= '/connectors/';
define('MODX_CONNECTORS_PATH', $modx_connectors_path);
define('MODX_CONNECTORS_URL', $modx_connectors_url);
}
if (!defined('MODX_MANAGER_PATH')) {
$modx_manager_path= '/home/accountname/public_html/custommanagerfoldername/';
$modx_manager_url= '/custommanagerfoldername/';
define('MODX_MANAGER_PATH', $modx_manager_path);
define('MODX_MANAGER_URL', $modx_manager_url);
}
if (!defined('MODX_BASE_PATH')) {
$modx_base_path= '/home/accountname/public_html/';
$modx_base_url= '/';
define('MODX_BASE_PATH', $modx_base_path);
define('MODX_BASE_URL', $modx_base_url);
}
The custom manager folder is part of hardening a Modx installation
https://docs.modx.com/revolution/2.x/administering-your-site/security/hardening-modx-revolution
https://docs.modx.com/revolution/2.x/getting-started/installation/advanced-installation