I have an online oscommerce store at http://www.thegiftcompany.ie/store

The store is configured to accept payments by Paypal and by cheque.

The Paypal is working fine but when you choose the cheque option there is an error message... "Fatal error: Call to a member function call_api() on a non-object in /home/khrsabad/public_html/store/checkout_process.php on line 102" This occurs at the end.

Does anyone know what is happening and how to fix?

Thanks.