не перезаписывает кеш файл

« MODx Parse Error »
MODx encountered the following error while attempting to parse the requested resource:
« PHP Parse Error »
 
PHP error debug
  Error: 	file(assets/cache/docid_1.pageCache.php) [function.file]: failed to open stream: Permission denied	 
  Error type/ Nr.: 	Warning - 2	 
  File: 	/home/domains/domen.com/public_html/manager/includes/document.parser.class.inc.php	 
  Line: 	369	 
  Line 369 source: 	$flContent= implode("", file($cacheFile)); 	 
 
Parser timing
  MySQL: 	0.0156 s	(1 Requests)
  PHP: 	0.0241 s	 
  Total: 	0.0398 s