Payment error still get email as a new order

https://www.prestashop.com/forums/topic/145578-payment-error-still-get-email-as-a-new-order/

under the modules/ps_mailalerts.php

around line 527  
before the line of mail: send, please add my code.
Search Mail::send

//start -- edited @8Aug2022 avoid sending email to merchant if 'payment error' status

$mail_switch = false;

if ((int)$order_state->id != 8){

$mail_switch = true;

}

// if ($dir_mail) {

if ($dir_mail && $mail_switch) {

//end -- edited @8Aug2022