Create a Temporary Script

• 1). Create a new plain text file, and copy/paste the following code into it:
  
  <?php
  
  unlink( "./advanced-cache.php" );
  
  echo "Process completed.";
  
  ?>
  
  
• 2). Save this file onto your desktop, or a folder where you can easily find it again. Name it "temp.php."
  
  
• 3). Open your FTP program and log in to your website that contains the WordPress script. In the directory that contains the original advanced-cache.php file, upload your newly created temp.php file. If the file shows as temp.php.txt on the server, rename it to temp.php (trimming off the .txt portion).
  
  
• 4). Open your preferred website browser. Enter the complete URL path to where temp.php resides on your website and load the page. If you see the words "Process completed," then close the browser.
  
  
• 5). Return to your FTP program and refresh the connection. You should see that the advanced-cache.php file is now gone. Now delete your temp.php file.