Install onlyoffice comunity server or onlyoffice group error rabbitmq connection refused

i have installed rabbitmq but this error appears. I also tried to install onlyoffice group or onlyoffice workspace without installing rabbitmq but still getting an error.

Hello brindel.
Please point me to the guide which you used for installation. Also let us know OS version. By the way, was it a ‘clean’ installation? I mean no other apps are installed on the server.