Nessus – Your client sent a request this server does not understand

Recently i have installed nessus on my ubuntu machine but bugged with this error ” Bad Request Your client sent a request this server does not understand”

How to Fix this error ?

Solution was pretty simple , by default nessus do not allow plain http connections to the server so we need to use https (https://localhost:8834/ )to access the web interface

Worked fine when accessed through https!