From d797291d8ef5f80238152c5ad97d845d21916fdc Mon Sep 17 00:00:00 2001
From: Liang Ding <d@b3log.org>
Date: Mon, 6 Jun 2022 22:16:45 +0800
Subject: [PATCH] =?UTF-8?q?:bug:=20=E6=9C=AA=E7=99=BB=E5=BD=95=E6=97=B6?=
 =?UTF-8?q?=E7=82=B9=E5=87=BB=E8=AF=95=E7=94=A8=E8=AE=A2=E9=98=85=E6=8A=A5?=
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---
 kernel/model/liandi.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/model/liandi.go b/kernel/model/liandi.go
index 53e2411be..5bc553791 100644
--- a/kernel/model/liandi.go
+++ b/kernel/model/liandi.go
@@ -32,6 +32,10 @@ import (
 var ErrFailedToConnectCloudServer = errors.New("failed to connect cloud server")
 
 func StartFreeTrial() (err error) {
+	if nil == Conf.User {
+		return errors.New(Conf.Language(31))
+	}
+
 	requestResult := gulu.Ret.NewResult()
 	request := util.NewCloudRequest(Conf.System.NetworkProxy.String())
 	_, err = request.