Failure in call to Pay()<br><br><b>PAYPAL RESPONSE</b>:<br>responseEnvelope.timestamp = 2026-06-09T15:12:31.156-07:00<br>responseEnvelope.ack = Failure<br>responseEnvelope.correlationId = 2cbb02916bde2<br>responseEnvelope.build = apapiserv-0.68.0_20260609165138636<br>error(0).errorId = 520009<br>error(0).domain = PLATFORM<br>error(0).subdomain = Application<br>error(0).severity = Error<br>error(0).category = Application<br>error(0).message = <font color='red'>Account Account not found.Unilateral receiver not allowed in chained payment is restricted</font><br><font color='blue'><b><u>HINT</u></b>: You can only use sandbox account email addresses during sandbox testing.</font><br>error(0).parameter(0) = <font color='red'>Account not found.Unilateral receiver not allowed in chained payment</font><br><br><b>IMPORTANT</b>: If you have not already done so, please read the <a href='FAQ.php' target='_blank'>EZChain FAQs</a> in detail. These contain many instructions and troubleshooting tips.<br><br><b>Need help? <a href='https://ppmts.custhelp.com/' target='_blank'>PayPal Merchant Technical Support</a>&nbsp;&nbsp;|&nbsp;&nbsp;<a href='http://stackoverflow.com/questions/tagged/paypal' target='_blank'>PayPal Developer Forums (StackOverflow)</a>&nbsp;&nbsp;|&nbsp;&nbsp;<a href='contactus.php' target='_blank'>Contact EZChain Support</a></b><br><br><span style='font-family:verdana;font-size:24px;color:blue'>Error Log ID#: <b>907</b></span> (If you need to contact us, please give us this Log ID# to assist with troubleshooting.)