CODE EXAMPLE FOR PHP

Failed to open stream: No such file or directory in /home/southsah/public_html/wp-content/advanced-cache.php on line 22

define('WP_CACHE', true);
// or may be it is a file like, if so then comment this line,
// below is the statement which need to be commented
// define('WP_CACHE', is_file(__DIR__.'/wp-content/advanced-cache.php'));
to prevent this error you can set to false, like

define('WP_CACHE', false);