« MODx Parse Error »

MODx encountered the following error while attempting to parse the requested resource:
« PHP Parse Error »
 
PHP error debug
  Error: mkdir(./cache): Permission denied 
  Error type/ Nr.: Warning - 2 
  File: /home/k1000/html/simulation/includes/magpierss-0.72/rss_cache.inc 
  Line: 34 
  Line 34 source: $status = @mkdir( $this->BASE_CACHE, 0755 );  
 
Parser timing
  MySQL: 0.1325 s s(5 Requests)
  PHP: 0.1077 s s 
  Total: 0.2402 s s