Why doesn't the document editing page open after site transfer?

Question

PHP

Hello, there is a site that I transferred to another hosting. After that, the document editing pages stopped working. Those. I go to the administrative panel - everything is fine, I can edit chunks, create snippets, but when I click on the "Edit" button or when creating a new document, an error 500 appears and the inscription "page not available". Tried to update - nothing changes. On that hosting, it all worked, and after the transfer, such a problem appeared. Already uploaded the site to a new host 3 times, everything is the same - everything works, but the editing page does not.
Here is what the logs show:

[2016-11-24 12:53:32] (ERROR @ /home/y/yaavzyqn/site.ee/public_html/core/xpdo/xpdo.class.php : 502) Path specified for package assman is not a valid or accessible directory: /home/u492618116/public_html/core/components/assman/model/
[2016-11-24 12:53:44] (ERROR @ /home/y/yaavzyqn/site.ee/public_html/core/xpdo/xpdo.class.php : 502) Path specified for package assman is not a valid or accessible directory: /home/u492618116/public_html/core/components/assman/model/
[2016-11-24 12:53:44] (ERROR @ /home/y/yaavzyqn/site.ee/public_html/core/xpdo/xpdo.class.php : 502) Path specified for package assman is not a valid or accessible directory: /home/u492618116/public_html/core/components/assman/model/
[2016-11-24 12:53:45] (ERROR @ /home/y/yaavzyqn/site.ee/public_html/core/xpdo/xpdo.class.php : 643) Could not load class: PageAsset from mysql.pageasset.
[2016-11-24 12:53:45] (ERROR @ /home/y/yaavzyqn/site.ee/public_html/core/xpdo/xpdo.class.php : 643) Could not load class: Asset from mysql.asset.
[2016-11-24 12:53:47] (ERROR @ /home/y/yaavzyqn/site.ee/public_html/core/xpdo/xpdo.class.php : 502) Path specified for package assman is not a valid or accessible directory: /home/u492618116/public_html/core/components/assman/model/

How to fix it?

Answer 1

Apparently, not all configs are fixed.

/core/config/config.inc.php
/config.core.php
/connectors/config.core.php
/manager/config.core.php

Answer 2

How to solve the "empty admin panel" problem in MODx?