Warning: 1 is not a valid Directory resource in...

[mr e]

ok this has got me completely confused, this is the error i get

Warning: 1 is not a valid Directory resource in /usr/local/psa/home/vhosts/wcgalaxy.com/httpdocs/mre/files.php on line 6

here is line 3-6 of my code

PHP Code:

        $folder = "trainers";
        $path = "/usr/local/psa/home/vhosts/wcgalaxy.com/httpdocs/wcfiles/$folder";
        $dir_handle = @opendir($path) or die("Unable to open $path");
        while ($file = readdir($dir_handle)) { 


what is wrong here? it didn't do this earlier but suddenly started giving me this error and i dont know what i edited it that makes it do this.

[Admin]

The host might have restricted access to the folder.