'；找不到订单'；在Magento中使用PayPal Plus支付后出现异常错误

最近，在用户在Magento完成结账并使用PayPal Plus作为付款方式后，我们收到了这些异常。客户收到错误页面，但已付款，并且Magento订单状态设置为“已付款”

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问题是什么？我该如何解决？任何提示，谢谢

请检查表

销售\付款\交易

<代码>订单id条目是否正确插入（由于未从当前交易中找到订单而出错）

exception 'Mage_Core_Exception' with message 'Order not found.' in app/Mage.php:595
Stack trace:
#0 app/code/community/Iways/PayPalPlus/Model/Webhook/Event.php(254): Mage::throwException('Order not found...')
#1 app/code/community/Iways/PayPalPlus/Model/Webhook/Event.php(70): Iways_PayPalPlus_Model_Webhook_Event->getOrder(Object(PayPal\Api\WebhookEvent))
#2 app/code/community/Iways/PayPalPlus/controllers/IndexController.php(171): Iways_PayPalPlus_Model_Webhook_Event->processWebhookRequest(Object(PayPal\Api\WebhookEvent))
#3 app/code/core/Mage/Core/Controller/Varien/Action.php(418): Iways_PayPalPlus_IndexController->webhooksAction()
#4 app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('webhooks')
#5 app/code/community/BalkeTechnologies/StoreMaintenance/Controller/Router/Standard.php(91): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#6 app/code/core/Mage/Core/Controller/Varien/Front.php(172): BalkeTechnologies_StoreMaintenance_Controller_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#7 app/code/core/Mage/Core/Model/App.php(365): Mage_Core_Controller_Varien_Front->dispatch()
#8 app/Mage.php(684): Mage_Core_Model_App->run(Array)
#9 index.php(83): Mage::run('', 'store')
#10 {main}