add is_deleted and sequential flags

CRM/Autofileoncase/AutoFile.php

@@ -74,10 +74,12 @@ class CRM_Autofileoncase_AutoFile extends CRM_Autofileoncase_HookBase {
     try {
 
       $case = civicrm_api3('Case', 'get', [
+        'sequential' => 1,
         'contact_id' => $activityTargets[0], // assume first contact
         'status_id' => 'Open',
+        'is_deleted' => 0,
         'options' => ['limit' => 1, 'sort' => 'id desc']
-      ]);
+      ])['values'][0];
 
     } catch (CiviCRM_API3_Exception $e) {
       // ignore exception