Code remains the same, API-Key unchanged, no change log updated but API Key error

Hello Support,

As mentioned in the subject, I have created an application to place open orders and it was working fine, but today I encountered the error

"code: -2014, msg: 'API-key format invalid.'"

push an order:

    let queryString = Object.keys(payload)
    .map((key) => `${key}=${payload[key]}`)
    .join('&');
    let signature = crypto
    .createHmac('sha256', secretKey)
    .update(queryString)
    .digest('hex');
    payload.signature = signature;
    const endpoint = 'https://fapi.binance.com/fapi/v1/order';
    const headers = { 'X-MBX-APIKEY': apiKey };
    const response = await axios.post(endpoint, null, { params: payload, headers });

I checked the API of the account and did not find any changes from change log update; and the API Key still exists.

Why am I encountering this issue when nothing has changed?!

Looking forward to your response, thank you!