alert on core error

backend/api/api.go

@@ -176,6 +176,15 @@ func (a *APIHandler) loadData(c *gin.Context) (interface{}, error) {
 		return "", err
 	}
 	onlines, err := a.StatsService.GetOnlines()
+
+	sysInfo := a.ServerService.GetSingboxInfo()
+	if sysInfo["running"] == false {
+		logs := a.ServerService.GetLogs("sing-box", "1", "debug")
+		if len(logs) > 0 {
+			data["lastLog"] = logs[0]
+		}
+	}
+
 	if err != nil {
 		return "", err
 	}