ENGCOM-5090: Fixed issue magento#22788 magento#22791

Author: sidolov

app/code/Magento/Sales/view/frontend/templates/email/shipment/track.phtml

@@ -9,8 +9,9 @@
 ?>
 <?php $_shipment = $block->getShipment() ?>
 <?php $_order = $block->getOrder() ?>
+<?php if ($_shipment && $_order): ?>
 <?php $trackCollection = $_order->getTracksCollection($_shipment->getId()) ?>
-<?php if ($_shipment && $_order && $trackCollection): ?>
+<?php if ($trackCollection): ?>
     <br />
     <table class="shipment-track">
         <thead>
@@ -29,3 +30,4 @@
         </tbody>
     </table>
 <?php endif; ?>
+<?php endif; ?>