Error message

• Warning: Use of undefined constant CACHE_DISABLED - assumed 'CACHE_DISABLED' (this will throw an Error in a future version of PHP) in visitors_exit() (line 160 of /home/miniset/miniset.net/sites/all/modules/visitors/visitors.exit.inc).
• Warning: Use of undefined constant CACHE_DISABLED - assumed 'CACHE_DISABLED' (this will throw an Error in a future version of PHP) in visitors_exit() (line 160 of /home/miniset/miniset.net/sites/all/modules/visitors/visitors.exit.inc).
• Warning: Use of undefined constant DRUPAL_BOOTSTRAP_PATH - assumed 'DRUPAL_BOOTSTRAP_PATH' (this will throw an Error in a future version of PHP) in visitors_exit() (line 161 of /home/miniset/miniset.net/sites/all/modules/visitors/visitors.exit.inc).