PHP7 exception in sendTransactionalEmails

[printminion]

Please check if invoice is null in the method

\Netresearch_OPS_Model_Observer::sendTransactionalEmails

since in PHP7 here \Netresearch_OPS_Helper_Data::sendTransactionalEmail you will get an null exception.

        try {
            Mage::helper('ops/data')->sendTransactionalEmail($order);
            Mage::helper('ops/data')->sendTransactionalEmail($order->getPayment()->getCreatedInvoice());
        } catch (Exception $e) {
            Mage::logException($e);
        }

 $invoice = $order->getPayment()->getCreatedInvoice();
 if ($invoice) {
     Mage::helper('ops/data')->sendTransactionalEmail($invoice);
 }