Here is the information from those steps:
Sever Log (I think):
173.0.81.1 - - [09/Nov/2015:07:12:51 -0500] "POST /index.php?option=com_hikashop&ctrl=checkout&task=notify¬if_payment=paypal&tmpl=component&lang=en&Itemid=178 HTTP/1.0" 200 - "-" "PayPal IPN ( https://www.paypal.com/ipn )"
70.195.134.130 - - [09/Nov/2015:07:13:09 -0500] "POST /index.php?option=com%5fhikashop&ctrl=checkout&task=after%5fend&order_id=6&Itemid=178 HTTP/1.1" 500 2074 "-"
173.0.81.1 - - [09/Nov/2015:07:12:51 -0500] "POST /index.php?option=com_hikashop&ctrl=checkout&task=notify¬if_payment=paypal&tmpl=component&lang=en&Itemid=178 HTTP/1.0" 200 - "-" "PayPal IPN ( https://www.paypal.com/ipn )"
The Payment Log file is in the screenshot attached below.
Thank you for your continued persistence on this issue.