PHP 8.2 + Creation of dynamic property is deprecated

Hello,
Since PHP 8/8 creation of dynamic property are deprecated
there are those warnings:

Creation of dynamic property WC_Iutepay_Gateway::$version is deprecated woocomerce-iutepay-gateway.php:404
Creation of dynamic property WC_Iutepay_Gateway::$country is deprecated woocomerce-iutepay-gateway.php:423
Creation of dynamic property WC_Iutepay_Gateway::$testmode is deprecated woocomerce-iutepay-gateway.php:425
Creation of dynamic property WC_Iutepay_Gateway::$env is deprecated woocomerce-iutepay-gateway.php:426
Creation of dynamic property WC_Iutepay_Gateway::$showPromoOnCategoryPage is deprecated woocomerce-iutepay-gateway.php:427
Creation of dynamic property WC_Iutepay_Gateway::$enableWebhook is deprecated woocomerce-iutepay-gateway.php:428
Creation of dynamic property WC_Iutepay_Gateway::$iute_admin_key is deprecated woocomerce-iutepay-gateway.php:429
Creation of dynamic property WC_Iutepay_Gateway::$iute_api_key is deprecated woocomerce-iutepay-gateway.php:430
Creation of dynamic property WC_Iutepay_Gateway::$emailNotificationAllowed is deprecated woocomerce-iutepay-gateway.php:432
Creation of dynamic property WC_Iutepay_Gateway::$emailNotificationAboutNewLoanApplication is deprecated woocomerce-iutepay-gateway.php:433
Creation of dynamic property WC_Iutepay_Gateway::$emailNotificationAboutLoanApplicationStatusChange is deprecated woocomerce-iutepay-gateway.php:434
Creation of dynamic property WC_Iutepay_Gateway::$emailNotificationNewOrder is deprecated woocomerce-iutepay-gateway.php:436
Creation of dynamic property WC_Iutepay_Gateway::$emailNotificationCancelledOrder is deprecated woocomerce-iutepay-gateway.php:437
Creation of dynamic property WC_Iutepay_Gateway::$emailNotificationOnHoldOrder is deprecated woocomerce-iutepay-gateway.php:438
Creation of dynamic property WC_Iutepay_Gateway::$emailNotificationProcessingOrder is deprecated woocomerce-iutepay-gateway.php:439
Creation of dynamic property WC_Iutepay_Gateway::$antifraudEnabled is deprecated woocomerce-iutepay-gateway.php:441
Creation of dynamic property WC_Iutepay_Gateway::$thankYouModalEnabled is deprecated woocomerce-iutepay-gateway.php:442
Creation of dynamic property WC_Iutepay_Gateway::$fastCheckoutFormPromoModal is deprecated woocomerce-iutepay-gateway.php:443
Creation of dynamic property WC_Iutepay_Gateway::$fastCheckoutButtonOnProductPage is deprecated woocomerce-iutepay-gateway.php:444
Creation of dynamic property WC_Iutepay_Gateway::$fastCheckoutButtonOnProductPageHTML is deprecated woocomerce-iutepay-gateway.php:445
Creation of dynamic property WC_Iutepay_Gateway::$fastCheckoutButtonOnProductPageSelector is deprecated woocomerce-iutepay-gateway.php:446
Creation of dynamic property WC_Iutepay_Gateway::$promoSettings is deprecated woocomerce-iutepay-gateway.php:448
Creation of dynamic property WC_Iutepay_Gateway::$envDomainName is deprecated woocomerce-iutepay-gateway.php:493
Creation of dynamic property WC_Iutepay_Gateway::$locale is deprecated woocomerce-iutepay-gateway.php:494
Creation of dynamic property WC_Iutepay_Gateway::$countryIso3Code is deprecated woocomerce-iutepay-gateway.php:495
Creation of dynamic property WC_Iutepay_Gateway::$currency is deprecated woocomerce-iutepay-gateway.php:496
Creation of dynamic property WC_Iutepay_Gateway::$envDomainSuffix is deprecated woocomerce-iutepay-gateway.php:505
Creation of dynamic property WC_Iutepay_Gateway::$url is deprecated woocomerce-iutepay-gateway.php:508

Best Regards