There seems to be a problem with my public key

[1970578978]

Sorry to disturb everyone.
Yesterday I used my public key to open the tokenizer-container normally, but I tried it again today and it seems that something went wrong. The error message is:

Necesitas un permiso para hacer el pago
Si precisás este acceso, pedíselo al administrador de la cuenta.

Does anyone know what is wrong with me?
Very grateful!
https://www.mercadopago.cl/developers/en/support/contact
I can’t seem to send out my question on this page, I clicked the send button madly but nothing happened

This is my code:
const mp = new MercadoPago('TEST----', {
locale: 'en-US',
})
mp.checkout({
tokenizer: {
totalAmount: 4000,
backUrl: 'https://yxps.lystrong.cn/h5/hybrid/html/process.php'
// savedCards: {
// // cardIds: '', // cardIds obtenidos
// // customerId: '**' // Tu customer id
// }
},
render: {
container: '.tokenizer-container', // Indica dónde se mostrará el botón
label: 'Pagar' // Cambia el texto del botón de pago (opcional)
}
});

[1970578978]

I know the cause of the problem.
I logged in to the developer's assistance account https://www.mercadopago.cl/ in my local browser. The account does not have the right to pay.
What surprised me was that the Web Tokenize Checkout of sdk-js actually recognized the cookie of https://www.mercadopago.cl/

https://www.mercadopago.cl/developers/en/support/contact
This website can be used, but I didn’t notice that there is an option in the small corner