Unexpected HTTP response: 500

Request
{
    "operation" => "composite",
    "address" => [],
    "steps" => [{
        "address" => [("subsystem" => "transactions")],
        "operation" => "write-attribute",
        "name" => "path",
        "value" => "fdg"
    }]
}

Response

Internal Server Error
{
    "outcome" => "failed",
    "result" => {"step-1" => {
        "outcome" => "failed",
        "failure-description" => "WFLYCTL0201: Unknown attribute 'path'",
        "rolled-back" => true
    }},
    "failure-description" => {"WFLYCTL0062: Composite operation failed and was rolled back. Steps that failed:" => {"Operation step-1" => "WFLYCTL0201: Unknown attribute 'path'"}},
    "rolled-back" => true,
    "response-headers" => {"process-state" => "restart-required"}
}