diff --git a/application/admin/controller/Fields.php b/application/admin/controller/Fields.php
index 3f210e2..6dfc032 100644
--- a/application/admin/controller/Fields.php
+++ b/application/admin/controller/Fields.php
@@ -209,7 +209,7 @@ class Fields extends Base {
             );
             $dataArr[] = $addArr;
             $prefix .= '[]';
-            if (is_array($data[0])) {
+            if (isset($data[0]) && is_array($data[0])) {
                 $this->handle($data[0], $dataArr, $prefix);
             }
         } else {