Payment error: Client authentication failed error message on our form

Hello I am desperate to make my payment window work but it just won't and it keeps saying there is a client authentication issue. Please can you help me make this work? I have got my client Id and Secret and have imputed them correctly but it still comes up with the error message.

Maxine

As I check your JotForm, there is no PayPal field on the form. Did you remove the PayPal field on your form? If you need to accept payments using PayPal express checkout, please follow the guide below:

https://www.jotform.com/help/542-How-to-integrate-PayPal-Checkout-with-your-form

If you want to receive the payments using Standard PayPal method, please refer to the guide below:

https://www.jotform.com/help/391-How-to-Integrate-Form-with-Paypal-Standard-

Thanks!