receiving error code 61 and error message "Expected 1 items but got 2"on swift client

[Mjod]

Hi , i am receiving an error on a raw mode subscription: [mode: RAW,
items: ["NOTIFICACAO"],
fields: ["id_notification", "cd_priority", "ds_title", "ds_body", "ds_action", "dh_notification", "notification_type"],
dataAdapter: BOVESPA]
the error says that I am sending two items, but on the subscription array, I am sending only one item.