jronder on "[Plugin: WP Super Cache] WP SUPER CACHE 1.2, function wpcache_broken_message"

In public_html/villasdiani.com/wp-content i see advanced-cache php which says:

<?php
# WP SUPER CACHE 1.2
function wpcache_broken_message() {
	if ( false == strpos( $_SERVER[ 'REQUEST_URI' ], 'wp-admin' ) )
		echo "<!-- WP Super Cache is installed but broken. The constant WPCACHEHOME must be set in the file wp-config.php and point at the WP Super Cache plugin directory. -->";
}

if ( false == defined( 'WPCACHEHOME' ) ) {
	define( 'ADVANCEDCACHEPROBLEM', 1 );
} elseif ( !include_once( WPCACHEHOME . 'wp-cache-phase1.php' ) ) {
	if ( !@is_file( WPCACHEHOME . 'wp-cache-phase1.php' ) ) {
		define( 'ADVANCEDCACHEPROBLEM', 1 );
	}
}
if ( defined( 'ADVANCEDCACHEPROBLEM' ) )
	register_shutdown_function( 'wpcache_broken_message' );
?>

also when I go to wp content-cache file I see there a number of weird files, I assume created by this plugin as they are named wp-cache-0e0b572b718a5c8c67a73f9d462379be.html
gzip compressed data, from Unix or wp-cache-22fcd4a679f07a20f6c577ca1b7ddc56.html
gzip compressed data, from Unix
When I view them, they are full of weird signs-question marks etc.

Thank you very much,
July Ronder

http://wordpress.org/plugins/wp-super-cache/