400 Error siteurl://rest/default/V1/guest-carts/LMdTZhklYkKCGkiHqLRB0OF4e0kHRX2Q/payment-information 4

It says “An error occurred on the server. Please try to place the order again” on the checkout page after clicking the place order button.
This happens for all payment methods.
Is there anyone who can help me?

Thanks.