Store Feedback addon issue

[jgessentials]

Hi

 

I have installed the Site Feedback contribution listed here:

Contrib 6550

 

As far as the main store page it looks like it is ok. I have a problem when going to my admin page, where I get the following error message:

 

Fatal error: Cannot redeclare tep_customers_name() (previously declared in /home/snowl0/public_html/shop/admin/includes/functions/general.php:60) in /home/snowl0/public_html/shop/admin/includes/functions/general.php on line 1364

 

Here is the code it is referring to:

 

  function tep_customers_name($customers_id) {
   if($customers_id == '')
   return 'Guest';

   $customers = tep_db_query("select customers_firstname, customers_lastname from " . TABLE_CUSTOMERS . " where customers_id = '" . (int)$customers_id . "'");
   $customers_values = tep_db_fetch_array($customers);

   return $customers_values['customers_firstname'] . ' ' . $customers_values['customers_lastname'];
 }

I am no expert here and would love to get this contrib to work any help would be greatly appreciated

Thank you