If one is logged out of IP and logs in using the Ajax-Chat index Log-In - viz:
http://127.0.0.1/forum/plugins/chat/index.php
This path in the index.php throws an error.
// Path to the chat directory:
define('AJAX_CHAT_PATH', dirname($_SERVER['SCRIPT_FILENAME']) . '/');
This doesn't.
// Path to the chat directory:
define('AJAX_CHAT_PATH', dirname($_SERVER['SCRIPT_FILENAME']) . './');