cart doesn’t work after woocommerce update

Debug log shows this error: PHP Fatal error: Uncaught Error: Call to a member function get_meta() on null in /var/www/clients/client2/web16/web/wp-content/plugins/elex-woocommerce-role-based-pricing-plugin-basic/includes/elex-price-discount-admin.php:477 Either disable the plugin or change the wp-content/plugins/elex-woocommerce-role-based-pricing-plugin-basic/includes/elex-price-discount-admin.php to this: // Should be: if ($individual_prod_btn_text && method_exists($individual_prod_btn_text, 'get_meta')) { { $individual_prod_btn_text = $product->get_meta( 'product_adjustment_customize_addtocart_prod_btn_text_unregistered' ); if ( 'yes' === ( $product->get_meta( 'product_adjustment_customize_addtocart_unregistered' ) ) && '' !== $individual_prod_btn_text ) { $cart_text_content = $individual_prod_btn_text; } elseif ( $this->replace_add_to_cart && '' !== $this->replace_add_to_cart_button_text_product ) { $cart_text_content = $this->replace_add_to_cart_button_text_product; } }} Please let me know when an official fix will be released