This means that the function is not defined in the store files or is defined by the store is not getting the file loaded.
this happens in badly customized templates of oscommerce.
quick fix is to delete the functions in the language files in english.php, german.php etc and then define the function in includes/functions/general.php so that is loads all the time irrespective of the language file selected.
If you need support in fixing it you can use the contact us form to get in touch with us.




