First time posting here. I got similar problem with pfs after initial install, glad to find Sapphire and Chang’s workaround, applied Sapphire’s workaround, it did not work for me initially, but after commenting out json_encode statement in pfs-submit.php, it worked:
$pfs = pfs_submit($_POST,$_FILES);
<strong>//echo json_encode($pfs);</strong>
//echo "<pre style=\"border:1px solid #ccc;margin-top:5px;\">".print_r($pfs, true)."</pre>\n";
wp_redirect("http://localhost/analystnews");
exit;