Undefined Property PHP Notice in Query Monitor

Hi,

With latest WordPress, WooCommerce and up-to-date plugins Query Monitor is displaying a PHP Error Notices (2) for this plugin:

Notice #1:

Error (E_NOTICE): “Undefined property: WC_PICKUP_STORE::$wps_tax_status” at ./wp-content/plugins/wc-pickup-store/includes/wps-functions.php:457.

Call Stack:

./wp-content/plugins/wc-pickup-store/includes/wps-functions.php:457:457
Decalog\L\PhpListener->handle_error()
wp-content/plugins/wc-pickup-store/includes/wps-functions.php:457
wps_get_tax_status()
wp-content/plugins/wc-pickup-store/includes/class-wps-init.php:77
WC_PICKUP_STORE->calculate_shipping()
wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-shipping-method.php:233
WC_Shipping_Method->get_rates_for_package()
wp-content/plugins/woocommerce/includes/class-wc-shipping.php:348
WC_Shipping->calculate_shipping_for_package()
wp-content/plugins/woocommerce/includes/class-wc-shipping.php:260
WC_Shipping->calculate_shipping()
wp-content/plugins/woocommerce/includes/class-wc-cart.php:1420
WC_Cart->calculate_shipping()
wp-content/plugins/woocommerce/includes/class-wc-cart-totals.php:339
WC_Cart_Totals->get_shipping_from_cart()
wp-content/plugins/woocommerce/includes/class-wc-cart-totals.php:850
WC_Cart_Totals->calculate_shipping_totals()
wp-content/plugins/woocommerce/includes/class-wc-cart-totals.php:144
WC_Cart_Totals->calculate()
wp-content/plugins/woocommerce/includes/class-wc-cart-totals.php:134
WC_Cart_Totals->__construct()
wp-content/plugins/woocommerce/includes/class-wc-cart.php:1398
WC_Cart->calculate_totals()
wp-includes/class-wp-hook.php:301
do_action('woocommerce_add_to_cart')
wp-content/plugins/woocommerce/includes/class-wc-cart.php:1276
WC_Cart->add_to_cart()
wp-content/plugins/woocommerce/includes/class-wc-form-handler.php:918
WC_Form_Handler::add_to_cart_handler_variable()
wp-content/plugins/woocommerce/includes/class-wc-form-handler.php:790
WC_Form_Handler::add_to_cart_action()
wp-includes/class-wp-hook.php:303
do_action('wp_loaded')
wp-settings.php:600

Notice #2:
Error (E_NOTICE): “Undefined property: WC_PICKUP_STORE::$wps_tax_status” at ./wp-content/plugins/wc-pickup-store/includes/wps-functions.php:466.

Call Stack:

./wp-content/plugins/wc-pickup-store/includes/wps-functions.php:466:466
Decalog\L\PhpListener->handle_error()
wp-content/plugins/wc-pickup-store/includes/wps-functions.php:466
wps_get_tax_status()
wp-content/plugins/wc-pickup-store/includes/class-wps-init.php:77
WC_PICKUP_STORE->calculate_shipping()
wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-shipping-method.php:233
WC_Shipping_Method->get_rates_for_package()
wp-content/plugins/woocommerce/includes/class-wc-shipping.php:348
WC_Shipping->calculate_shipping_for_package()
wp-content/plugins/woocommerce/includes/class-wc-shipping.php:260
WC_Shipping->calculate_shipping()
wp-content/plugins/woocommerce/includes/class-wc-cart.php:1420
WC_Cart->calculate_shipping()
wp-content/plugins/woocommerce/includes/class-wc-cart-totals.php:339
WC_Cart_Totals->get_shipping_from_cart()
wp-content/plugins/woocommerce/includes/class-wc-cart-totals.php:850
WC_Cart_Totals->calculate_shipping_totals()
wp-content/plugins/woocommerce/includes/class-wc-cart-totals.php:144
WC_Cart_Totals->calculate()
wp-content/plugins/woocommerce/includes/class-wc-cart-totals.php:134
WC_Cart_Totals->__construct()
wp-content/plugins/woocommerce/includes/class-wc-cart.php:1398
WC_Cart->calculate_totals()
wp-includes/class-wp-hook.php:301
do_action('woocommerce_add_to_cart')
wp-content/plugins/woocommerce/includes/class-wc-cart.php:1276
WC_Cart->add_to_cart()
wp-content/plugins/woocommerce/includes/class-wc-form-handler.php:918
WC_Form_Handler::add_to_cart_handler_variable()
wp-content/plugins/woocommerce/includes/class-wc-form-handler.php:790
WC_Form_Handler::add_to_cart_action()
wp-includes/class-wp-hook.php:303
do_action('wp_loaded')
wp-settings.php:600

Version: WC Pickup Store 1.7.3, PHP 7.4

Thank you in advance for the fix, best regards,

Gyula