Morning =)

So I have a new build 1.5.8 running the latest bootstrap & opc on PHP 7.3 (because of this https://www.zen-cart.com/showthread....ents-Pro-1-5-8) . When the confirm order is pressed nothing happens. I think the issues is also related to PayPal PRO. PHP is downgraded purposely because of the issues (bug) with PayPal PRO on PHP 8.

Code:
[19-Jan-2023 08:17:45 America/New_York] Request URI: /ajax.php?act=ajaxPayment&method=prepareConfirmation, IP address: 134.215.175.155
#1  paypaldp->__construct() called at [/home/xxx/public_html/includes/classes/payment.php:102]
#2  payment->__construct() called at [/home/xxx/public_html/includes/classes/ajax/zcAjaxPayment.php:80]
#3  zcAjaxPayment->prepareConfirmation() called at [/home/xxx/public_html/ajax.php:85]
--> PHP Warning: Use of undefined constant MODULE_PAYMENT_PAYPALDP_DEBUGGING - assumed 'MODULE_PAYMENT_PAYPALDP_DEBUGGING' (this will throw an Error in a future version of PHP) in /home/xxx/public_html/includes/modules/payment/paypaldp.php on line 282.

[19-Jan-2023 08:17:45 America/New_York] Request URI: /ajax.php?act=ajaxPayment&method=prepareConfirmation, IP address: 134.215.175.155
#1  paypaldp->__construct() called at [/home/xxx/public_html/includes/classes/payment.php:102]
#2  payment->__construct() called at [/home/xxx/public_html/includes/classes/ajax/zcAjaxPayment.php:80]
#3  zcAjaxPayment->prepareConfirmation() called at [/home/xxx/public_html/ajax.php:85]
--> PHP Warning: Use of undefined constant MODULE_PAYMENT_PAYPALDP_DEBUGGING - assumed 'MODULE_PAYMENT_PAYPALDP_DEBUGGING' (this will throw an Error in a future version of PHP) in /home/xxx/public_html/includes/modules/payment/paypaldp.php on line 282.

[19-Jan-2023 08:17:45 America/New_York] Request URI: /ajax.php?act=ajaxPayment&method=prepareConfirmation, IP address: 134.215.175.155
#1  paypaldp->__construct() called at [/home/xxx/public_html/includes/classes/payment.php:102]
#2  payment->__construct() called at [/home/xxx/public_html/includes/classes/ajax/zcAjaxPayment.php:80]
#3  zcAjaxPayment->prepareConfirmation() called at [/home/xxx/public_html/ajax.php:85]
--> PHP Warning: Use of undefined constant MODULE_PAYMENT_PAYPALDP_DEBUGGING - assumed 'MODULE_PAYMENT_PAYPALDP_DEBUGGING' (this will throw an Error in a future version of PHP) in /home/xxx/public_html/includes/modules/payment/paypaldp.php on line 283.

[19-Jan-2023 08:17:45 America/New_York] Request URI: /ajax.php?act=ajaxPayment&method=prepareConfirmation, IP address: 134.215.175.155
#1  paypaldp->__construct() called at [/home/xxx/public_html/includes/classes/payment.php:102]
#2  payment->__construct() called at [/home/xxx/public_html/includes/classes/ajax/zcAjaxPayment.php:80]
#3  zcAjaxPayment->prepareConfirmation() called at [/home/xxx/public_html/ajax.php:85]
--> PHP Warning: Use of undefined constant MODULE_PAYMENT_PAYPALDP_DEBUGGING - assumed 'MODULE_PAYMENT_PAYPALDP_DEBUGGING' (this will throw an Error in a future version of PHP) in /home/xxx/public_html/includes/modules/payment/paypaldp.php on line 283.

[19-Jan-2023 08:17:45 America/New_York] Request URI: /ajax.php?act=ajaxPayment&method=prepareConfirmation, IP address: 134.215.175.155
#1  paypaldp->__construct() called at [/home/xxx/public_html/includes/classes/payment.php:102]
#2  payment->__construct() called at [/home/xxx/public_html/includes/classes/ajax/zcAjaxPayment.php:80]
#3  zcAjaxPayment->prepareConfirmation() called at [/home/xxx/public_html/ajax.php:85]
--> PHP Warning: Use of undefined constant MODULE_PAYMENT_PAYPALDP_DEBUGGING - assumed 'MODULE_PAYMENT_PAYPALDP_DEBUGGING' (this will throw an Error in a future version of PHP) in /home/xxx/public_html/includes/modules/payment/paypaldp.php on line 283.

[19-Jan-2023 08:17:45 America/New_York] Request URI: /ajax.php?act=ajaxPayment&method=prepareConfirmation, IP address: 134.215.175.155
#1  require_once() called at [/home/xxx/public_html/includes/classes/ajax/zcAjaxPayment.php:177]
#2  zcAjaxPayment->prepareConfirmation() called at [/home/xxx/public_html/ajax.php:85]
--> PHP Warning: require_once(/home/xxx/public_html/includes/languages/english.php): failed to open stream: No such file or directory in /home/xxx/public_html/includes/classes/ajax/zcAjaxPayment.php on line 177.

[19-Jan-2023 08:17:45 America/New_York] PHP Fatal error:  require_once(): Failed opening required '/home/xxx/public_html/includes/languages/english.php' (include_path='.:/opt/cpanel/ea-php73/root/usr/share/pear') in /home/xxx/public_html/includes/classes/ajax/zcAjaxPayment.php on line 177
I also have PM'd you the debug log.

Thanks in advance.