How do I fix this ROBLOX String Filtering code for a name tag?

I have this code to filter the text and then put the text onto a name tag. However, the code runs all the way and doesn't filter anything. Any solution? Thanks! P.S. I also already tried to change the lines that change the text from "text" to "filteredText".

Script:

local TextService = game:GetService("TextService")
local ReplicatedStorage = game:GetService("ReplicatedStorage")

local signLabel = script.Parent

local setSignText = ReplicatedStorage.RoleplayChange

local function getTextObject(message, fromPlayerId)
    local textObject
    local success, errorMessage = pcall(function()
        textObject = TextService:FilterStringAsync(message, fromPlayerId)
    end)
    if success then
        return textObject
    elseif errorMessage then
        print("Error generating TextFilterResult:", errorMessage)
    end
    return false
end

local function getFilteredMessage(textObject)
    local filteredMessage
    local success, errorMessage = pcall(function()
        filteredMessage = textObject:GetNonChatStringForBroadcastAsync()
    end)
    if success then
        return filteredMessage
    elseif errorMessage then
        print("Error filtering message:", errorMessage)
    end
    return false
end

-- Fired when client sends a request to write on the sign
local function onSetSignText(player, text)
    if text ~= "" then
        -- Filter the incoming message and send the filtered message
        local messageObject = getTextObject(text, player.UserId)
        local filteredText = ""
        filteredText = getFilteredMessage(messageObject)
        player.RoleplayNameValue.Value = filteredText
        player.Character.Head.RPName.TextLabel.Text = filteredText
    end
end

setSignText.OnServerEvent:Connect(onSetSignText)

Local script line:

game.ReplicatedStorage.RoleplayChange:FireServer(script.Parent.Parent.RPName.Text)