Uncaught Error: Call to a member function getId() on null in /zahls-ch-payment-g

Hello,
i have an error on processing payment width zahls gateway
did you know what’s append ?

You can find the error description below
Thank you

Critique?Uncaught Error:?Call to a member function getId() on null in /zahls-ch-payment-gateway/woo-zahls-gateway.php:275?

Contexte supplémentaire{ “error”: { “type”: 1, “file”: “\/zahls-ch-payment-gateway\/woo-zahls-gateway.php”, “line”: 275 }, “backtrace”: [ “”, “#0 \/plugins\/woocommerce\/includes\/class-wc-checkout.php(1058): WC_Zahls_Gateway->process_payment(1133)”, “#1 \/plugins\/woocommerce\/includes\/class-wc-checkout.php(1287): WC_Checkout->process_order_payment(1133, ‘zahls’)”, “#2 \/plugins\/woocommerce\/includes\/class-wc-ajax.php(508): WC_Checkout->process_checkout()”, “#3 \/wp-includes\/class-wp-hook.php(324): WC_AJAX::checkout(”)”, “#4 \/wp-includes\/class-wp-hook.php(348): WP_Hook->apply_filters(”, Array)”, “#5 \wp-includes\/plugin.php(517): WP_Hook->do_action(Array)”, “#6 \/plugins\/woocommerce\/includes\/class-wc-ajax.php(96): do_action(‘wc_ajax_checkou…’)”, “#7 \/wp-includes\/class-wp-hook.php(324): WC_AJAX::do_wc_ajax(”)”, “#8 \/wp-includes\/class-wp-hook.php(348): WP_Hook->apply_filters(false, Array)”, “#9 \/wp-includes\/plugin.php(517): WP_Hook->do_action(Array)”, “#10 \/wp-includes\/template-loader.php(13): do_action(‘template_redire…’)”, “#11 \/wp-blog-header.php(19): require_once(‘\/home\/clients\/0…’)”, “#12 \/index.php(17): require(‘\/home\/clients\/0…’)”, “#13 {main}”, “thrown” ] }