Messaging Service Fails to Send from Server to Roblox

Hello, I’m making a web panel for my game and we are trying to do Server shutdowns from our panel.

Our Server code:

app.post('/shutdown', async (req, res) => {
    try {
        await axios.post(
            "https://apis.roblox.com/messaging-service/v1/universes/14269316750/topics/shutdown",
            {
                message: "Server Shutdown Via Panel."
            },
            {
                headers: {
                    'x-api-key': config.MSAPIKEY,
                    'Content-Type': 'application/json'
                }
            }
        );
        res.status(200).send({ message: 'Shutdown message sent successfully.' });
    } catch (error) {
        console.error('Error sending shutdown message:', error);
        res.status(500).send({ error: 'Failed to send shutdown message.' });
    }
});

Our Roblox code:

local HTTPs = game:GetService("HttpService")
local Players = game:GetService("Players")
local MessagingService = game:GetService("MessagingService")

MessagingService:SubscribeAsync("shutdown", function(message)
	local reason = message.Data

	warn("SHUTTING DOWN")

	task.wait(5)

	for _, player in ipairs(Players:GetPlayers()) do
		player:Kick("\n\n\n[Shutdown Reason]: " .. reason)
	end
end)

When I look through the Server logs and Roblox Logs. The Server logs shows a request sent into our POST Endpoint but on the Roblox side I see no logs for an Incoming MessagingService Topic Request.

Server Logs:
image

The screenshot of the server logs shows a cut off error message. I can make out Error sending shutdown message: AxiosError: request failed with... so it seems that the open cloud request is failing. Without the error message, it’s impossible to say what the reason is, so could you send the full thing (omit any sensitive data of course)?