diff --git a/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/GranularImporter.php b/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/GranularImporter.php
index 260f5f26d..1d40a6835 100644
--- a/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/GranularImporter.php
+++ b/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/GranularImporter.php
@@ -298,23 +298,23 @@ class GranularImporter
     }
 
     /**
-     * @param $objectList
-     * @param array $data
-     * @return data
+     * @param $data
+     * @param bool $generateUid
+     * @return array
      * @throws \Exception
      */
     public function regenerateAllUids($data, $generateUid = true)
     {
         try {
             $newData = array();
-            $arrayBpmnTables     = $data["tables"]["bpmn"];
+            $arrayBpmnTables = $data["tables"]["bpmn"];
             $arrayWorkflowTables = $data["tables"]["workflow"];
-            $arrayWorkflowFiles  = $data["files"]["workflow"];
+            $arrayWorkflowFiles = $data["files"]["workflow"];
             $result = $this->bpmn->createFromStruct($this->structureBpmnData($arrayBpmnTables), $generateUid);
             $projectUidOld = $arrayBpmnTables["project"][0]["prj_uid"];
-            $projectUid = ($generateUid)? $result[0]["new_uid"] : $result;
+            $projectUid = ($generateUid) ? $result[0]["new_uid"] : $result;
             if ($generateUid) {
-                $result[0]["object"]  = "project";
+                $result[0]["object"] = "project";
                 $result[0]["old_uid"] = $projectUidOld;
                 $result[0]["new_uid"] = $projectUid;
 
@@ -323,12 +323,12 @@ class GranularImporter
                 list($arrayWorkflowTables, $arrayWorkflowFiles) = $workflow->updateDataUidByArrayUid($arrayWorkflowTables, $arrayWorkflowFiles, $result);
             }
             $newData['tables']['workflow'] = $arrayWorkflowTables;
-            $newData['tables']['plugins'] = $data["tables"]["plugins"];
-            $newData['files']['workflow']  = $arrayWorkflowFiles;
+            $newData['tables']['plugins'] = isset($data["tables"]["plugins"]) ? $data["tables"]["plugins"] : [];
+            $newData['files']['workflow'] = $arrayWorkflowFiles;
 
             return array(
-            'data'    => $newData,
-            'new_uid' => $projectUid);
+                'data' => $newData,
+                'new_uid' => $projectUid);
 
         } catch (\Exception $e) {
             throw $e;