I have a problem with the DISCORD webhooks, I have already tried to send a manual request from the cmd and if it works, but not here, I do not know where the error is, attached error that comes out in the host console (The discord bot name is CASH) so ¿Where is the error?

-- Function to send the message to Discord
function sendDiscordLog(message)
    if not webhookURL then
        outputDebugString("[Discord] Error: webhookURL is not configured")
        return
    end

    -- Manually construct the JSON in the correct format
    local postData = string.format(
        '{"username":"MONEY","content":"%s","avatar_url":".png"}',
        message
    )

    outputDebugString("[Discord] Attempting to send: " .. postData)

    fetchRemote(webhookURL, 
        function(responseData, responseInfo)
            outputDebugString("[Discord] Status: " .. tostring(responseInfo))
            if responseData then
                outputDebugString("[Discord] Full response: " .. tostring(responseData))
            end
            if responseInfo == 400 then
                outputDebugString("[Discord] Error 400 - Check message format")
                outputDebugString("[Discord] Sent data: " .. postData)
            end
        end,
        "POST",  -- Correct HTTP method
        postData, -- Properly formatted JSON
        true, -- IMPORTANT: This parameter is a boolean and must be present
        {["Content-Type"] = "application/json"} -- Valid JSON header
    )
end

-- Test command
addCommandHandler("testwebhook", function()
    sendDiscordLog("Test message from MONEY")
end)

- ERROR

[06:18:56] INFO: [Discord]Trying to sent:{"username":"CASH","content":"Test MSG from CASH","avatar_url":".png"}[06:18:56] WARNING: [Economia]/server.lua:51: Bad argument @ 'fetchRemote' [Expected bool at argument 4, got string '{"username":"CASH","content":"Test MSG from CASH","avatar_url":".png"}']

I have tried almost EVERYTHING from CMD Request, to checking letter by letter the webhook link and it works so the error is in the code.

I don’t know ¿Where is the error? so if somebody see it, please notify.