Unable to load custom logic class

Hi All 

           I am getting this error-Unable to load custom logic class in log file the description field is not updating in my logichook. Tevfik Tümer David López Mehul  Bhandari

I need to fix it urgently can any one please help me version 7.7

custom/Extension/moudules/<mycustommodule>/Ext/LogicHooks/logic_hooks.php file

<?php
$hook_version = 1;

$hook_array['before_save'][] = array(
1, //Integer
'SLT', //String
'custom/modules/<mymodule>/readynum.php', //String or null if using namespaces
'Cnumhook', //String
'cnumber', //String
);


?>

custom/modules/<mycustommodule>/readynum.php

if(!defined('sugarEntry') || !sugarEntry) die('Not A Valid Entry Point');

class Cnumhook {

function cnumber($bean, $event, $arguments){

$bean->description="help the helpers";

}
}
?>

Regards

Sidhu