diff --git a/wwwroot/task_info.ui b/wwwroot/task_info.ui
index cd37b95..d183617 100644
--- a/wwwroot/task_info.ui
+++ b/wwwroot/task_info.ui
@@ -1,5 +1,6 @@
 {% set dmgr=DownloadMgr(request) %}
 {% set status=dmgr.get_task_status(params_kw.taskid) %}
+{% if status %}
 {
 	"widgettype":"VBox",
 	"options":{
@@ -24,3 +25,12 @@
 		}
 	]
 }
+{
+	"widgettype":"Text",
+	"options":{
+		"cwidth":16,
+		"cheight":14,
+		"text":"{{paramas_kw.taskid}} get status error"
+	}
+}
+{% endif %}