Hello && welcome!
Not a lot to go on other than the Graylog version… Here are some tips on how to make your question clearer here and here.
Have you looked in the Graylog logs? What are the server.conf files? The tips I posted show how to get the server.conf data with out all the comments… make sure to obfuscate where needed… they also show how to use the </> forum tool when posting code/logs to make it easily readable…