diff --git a/src/Controller/JobOrderController.php b/src/Controller/JobOrderController.php
index 5da0b9c8..2ed5ea96 100644
--- a/src/Controller/JobOrderController.php
+++ b/src/Controller/JobOrderController.php
@@ -257,7 +257,11 @@ class JobOrderController extends BaseController
             $row['status'] = $statuses[$orow->getStatus()];
             $row['flag_advance'] = $orow->isAdvanceOrder();
 
-            $row['processor'] = $orow->getProcessedBy()->getFullName();
+            $processor = $orow->getProcessedBy();
+            if ($processor == null)
+                $row['processor'] = '';
+            else
+                $row['processor'] = $orow->getProcessedBy()->getFullName();
 
             // add crud urls
             $row['meta']['update_url'] = $this->generateUrl($tier_params['edit_route'], ['id' => $row['id']]);