diff --git a/packages/ui/certd-server/src/plugins/plugin-aliyun/dns-provider/aliyun-dns-provider.ts b/packages/ui/certd-server/src/plugins/plugin-aliyun/dns-provider/aliyun-dns-provider.ts
index c7c6a22b7..6ac4cc0b3 100644
--- a/packages/ui/certd-server/src/plugins/plugin-aliyun/dns-provider/aliyun-dns-provider.ts
+++ b/packages/ui/certd-server/src/plugins/plugin-aliyun/dns-provider/aliyun-dns-provider.ts
@@ -119,7 +119,7 @@ export class AliyunDnsProvider extends AbstractDnsProvider {
   }
 
   resolveError(e: any, req: CreateRecordOptions) {
-    if (e.Message.indexOf('The specified domain name does not exist') > -1) {
+    if (e.message?.indexOf('The specified domain name does not exist') > -1) {
       throw new Error(`阿里云账号中不存在此域名:${req.domain}`);
     }
     throw e;