TV image preview modx Revo

There is a bug in modx revo that in manager i can't see image preview in TV.

Solutions is :

So, following the method mentioned in the bug report, I simply changed Line 219 in core/model/phpthumb/phpthumb.class.php:

From :

$this->config_document_root = (@$_SERVER['DOCUMENT_ROOT'] ? $_SERVER['DOCUMENT_ROOT'] : $this->config_document_root);

To :

$this->config_document_root = (@$_SERVER['DOCUMENT_ROOT'] ? '/home/username/public_html' : $this->config_document_root);

and it's worked for me.