After a while Bot can not read the message.

[jaeyeon93]

Hi,
I'm making my custom slack-bot using jbot.
I have a two issue on jbot.

First,
When I start the server for the first time, the bot performs well. but After a while, Bot can not read the message, server running very well. bot can't.
I'm testfied my local server. same problem occur.

Second,
I'm used jbot as read my message,
when I send the message, jbot read twice, for example when I send "hello world" bot read "hello world" and " " one space.
How can I solve the this problem??... :(

This is my project source code : https://github.com/jaeyeon93/stock-crawler

@Controller(events = EventType.MESSAGE, pattern = "[^a-zA-Z\\d\\s:]")
    public ResponseEntity<String> onReceiveMessage(WebSocketSession session, Event event, Matcher matcher) throws Exception {
        String message = event.getText().toUpperCase();
        logger.info("메세지 : {}", message);

        if (message.contains("검색"))
            return slackBotRepository.search(message.substring(message.indexOf(":")+1).trim(), event);

        if (command.containsKey(message))
            return slackBotRepository.requestCommand(message, event);

        return slackBotRepository.reqeustCustomStock(message, event);
    }

this is my controller code

Thank you for reading my article