i have this since v3 to v4 upgrade .using normal paypal plugin the recurring member account invoice is not updated of course bue to this error i think . Code: 01/28/12 03:29 AM Click to Expand 66.211.170.66 Unknown transaction: related invoice not found #[3889-GML] Click to Expand Exception Am_Exception_Paysystem_TransactionUnknown Am_Paysystem_Transaction_Incoming->autoCreate [ library/Am/Paysystem/Transaction/Incoming.php : 278 ] Am_Paysystem_Transaction_Incoming->validate [ library/Am/Paysystem/Transaction/Abstract.php : 45 ] Am_Paysystem_Transaction_Abstract->process [ library/Am/Paysystem/Transaction/Incoming.php : 222 ] Am_Paysystem_Transaction_Incoming->process [ library/Am/Paysystem/Abstract.php : 442 ] Am_Paysystem_Abstract->directAction [ application/default/controllers/DirectController.php : 35 ] DirectController->__call [ library/Am/Controller.php : 118 ] Am_Controller->dispatch [ library/Zend/Controller/Dispatcher/Standard.php : 295 ] Zend_Controller_Dispatcher_Standard->dispatch [ library/Zend/Controller/Front.php : 954 ] Zend_Controller_Front->dispatch [ library/Am/App.php : 1372 ] Am_App->run [ index.php : 42 ]