Hey all... I tested a paid subscription on the site yesterday and it worked fine. Receipt number in the proper field and the user was able to access the site right away. Now, I get the email from Paypal that the payment has been sent to the account, but it doesn't register back on our server. This is the error we get: PAYPAL ERROR: finish_waiting_payment error: Payment not found. Possible reasons: payment already processed, incorrect payment_id, payment system or there is amount mistake (Details: txn_id:'6K1XXXXXXX86544Y', invoice:'86') Any help is much appreciated!