diff --git a/src/Http/Response.php b/src/Http/Response.php
index 7f81993..43dddb1 100644
--- a/src/Http/Response.php
+++ b/src/Http/Response.php
@@ -21,7 +21,7 @@ public function setResponse($httpResponse)
         }
 
         return $this;
-    }   
+    }
 
     public function getStatusCode()
     {
@@ -58,8 +58,8 @@ private function parseJson($json)
 
         if (!$this->isSuccessful()) {
             return [
-                'error' => $data['errors'][0]['errorDetail'],
-                'errorCode' => $data['errors'][0]['errorCode']
+                'error' => $data['errors'][0]['message'],
+                'errorCode' => $data['errors'][0]['code']
             ];
         }
 
diff --git a/src/Services/SignatureService.php b/src/Services/SignatureService.php
index 848b645..a5e1e1b 100644
--- a/src/Services/SignatureService.php
+++ b/src/Services/SignatureService.php
@@ -2,6 +2,7 @@
 
 namespace Jooyeshgar\Moadian\Services;
 
+use Carbon\Carbon;
 use Firebase\JWT\JWT;
 
 class SignatureService