Problem with xml file not loaded

I was getting this error:

Warning: DOMDocument::load(): I/O warning : failed to load external entity
"/srv/sites/crm.depressionteenshelp.com/sites/all/modules/civicrm/CRM/Case/xml/configuration.sample/Settings.xml" in
CRM_Case_XMLRepository->retrieveFile() (line 139 of /srv/sites/crm.depressionteenshelp.com/sites/all/modules/civicrm/CRM/Case/XMLRepository.php).

There were a lot of problems and I was about to get rid of CiviCRM.

Then I made a change.

I added the line:

libxml_disable_entity_loader(false);

To the file:

/srv/sites/crm.depressionteenshelp.com/sites/all/modules/civicrm/CRM/Case/XMLRepository.php

At line 139

Now it looks like this:

if ($fileName && file_exists($fileName))

{ // read xml file //watchdog('debug', print_r($fileName, 1)); libxml_disable_entity_loader(false); $dom = new DomDocument(); $dom->load($fileName); $dom->xinclude(); $fileXml = simplexml_import_dom($dom); }

Dom->load couldn't load the xml because the entity loader was disabled.

It works. It seems to be related to some php bug.