diff --git a/extend/chat/model/Business.php b/extend/chat/model/Business.php
index 0b1aeff..f02ab90 100644
--- a/extend/chat/model/Business.php
+++ b/extend/chat/model/Business.php
@@ -67,7 +67,10 @@ class Business
         if($sent) {
             $sent = json_decode($sent, true);
             foreach ($sent as $k => $v) {
-                $data[] = json_decode(Redis::get($v), true);
+                $msg = Redis::get($v);
+                if($msg) {
+                    $data[] = json_decode(Redis::get($v), true);
+                }
                 Redis::del($v);
             }
             Redis::del($set_str);