diff --git a/app/Helpers/Helper.php b/app/Helpers/Helper.php
index 4da6c39e..ca123112 100644
--- a/app/Helpers/Helper.php
+++ b/app/Helpers/Helper.php
@@ -88,8 +88,15 @@ class Helper
 
     public static function principalName($code)
     {
-        $principalName = Member::where('member_id', $code)->get()->first();
-        return $principalName->name;
+        $principalName = Member::where('member_id', $code)->first();
+
+        if ($principalName !== null) {
+            return $principalName->name;
+        } else {
+            // Tangani situasi di mana member_id tidak ditemukan
+            return 'Member not found'; // Atau berikan nilai default atau pesan error yang sesuai
+        }
+
     }
 
     public static function userName($id)