I keep geeting HTTP Server response 429 when trying to get the json from the logs

This is my method that makes a request to the Logs.tf api, its written in java. Currently i basically get a List of Logs from a player(with having the limit set to 100, it works with having the limit set to 50 though) using the http://logs.tf/api/v1/log?player=Z&limit=X link and then parsing them one by one. First I Call this method to get the JSON and then a diffrent one to parse it, but around halfway through I get a 429 with the lmit set to 100.
My question is: is the Requestlimit the problem here or is my method somehow wrong?

    //Gets the JSON String from a logURL
    String getLogJson(URL logURL){
        StringBuilder content = new StringBuilder();
        try {
            //Connect to Logs.tf and request a Log
            HttpURLConnection con = (HttpURLConnection) logURL.openConnection();
            con.setRequestMethod("GET");

            //Reads the log JSON
            BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
            String inputLine;
            while ((inputLine = in.readLine()) != null) {
                content.append(inputLine);
            }

            //closes the connection
            in.close();
            con.disconnect();

        } catch (IOException e) {
            System.err.println("Connection Error");
            e.printStackTrace();
        }

        //return the full json String
        return content.toString();
    }