Deprecated: Paynow\Exception\PaynowException::__construct(): Implicitly marking parameter $previous as nullable is deprecated, the explicit nullable type must be used instead in /home/codebees/domains/codebees.pl/public_html/wp-content/plugins/pay-by-paynow-pl/vendor/pay-now/paynow-php-sdk/src/Paynow/Exception/PaynowException.php on line 20