error in woocommerce payment callback

Hi, in our site we have a credit card payment callback as https://naranjascostadelsol.es/?wc-api=WC_MyRedsys that happen when the payment is done and the bank has to call the site to confirm the payment on that order….

When wp cerber is active the callback is refused and the process doesn’t end as expected… so, how can I add an exception to wp cerber to not block that call?

thank you very much