diff --git a/app/api/controller/ContractController.php b/app/api/controller/ContractController.php
index 80b1b175..9a0f7c7b 100644
--- a/app/api/controller/ContractController.php
+++ b/app/api/controller/ContractController.php
@@ -80,7 +80,7 @@ class ContractController extends BaseApiController
             $cars = json_decode($contract['cars_info'], true);
             $data = [];
             foreach($cars as $v){
-                $hasCar = VehicleRent::where('car_id',$v['id'])->find();
+                $hasCar = VehicleRent::where('car_id',$v['id'])->findOrEmpty();
                 if($hasCar->isEmpty()){
                     $data[] = [
                         'car_id' => $v['id'],