Route is working fine before I wrapped it in `auth...

# ktor

[tjohnn]

Route is working fine before I wrapped it in `authenticate{}`:

application.routing {
            route("/admin/categories") {
                    ...
                    get {...}
                    ...
            }
        }

I keep getting this error after wrapping it:
Conversion failed, null returned io.ktor.features.CannotTransformContentToTypeException: Cannot transform this request's content to class io.ktor.http.Parameters

Code that throws the error:

application.routing {
            authenticate(ADMIN_AUTH) {
                route("/admin/categories") {
                    ...
                    get {...}
                    ...
                }
            }
            
        }