Payment Issue

Hi, I am facing issue with payment of creditcard using woocom square and it displays error log:

2020-08-08T18:08:28+00:00 CRITICAL Uncaught Error: Call to a member function getOrder() on null in /home3/hlzpdvmy/public_html/Apexa/wordpress/wp-content/plugins/woocommerce-square/includes/Gateway/API.php:320
Stack trace:
#0 /home3/hlzpdvmy/public_html/Apexa/wordpress/wp-content/plugins/woocommerce-square/includes/Gateway.php(288): WooCommerce\Square\Gateway\API->create_order(‘L2GZPX0AJ0NJ0’, Object(Automattic\WooCommerce\Admin\Overrides\Order))
#1 /home3/hlzpdvmy/public_html/Apexa/wordpress/wp-content/plugins/woocommerce-square/vendor/skyverge/wc-plugin-framework/woocommerce/payment-gateway/class-sv-wc-payment-gateway-direct.php(384): WooCommerce\Square\Gateway->do_transaction(Object(Automattic\WooCommerce\Admin\Overrides\Order))
#2 /home3/hlzpdvmy/public_html/Apexa/wordpress/wp-content/plugins/woocommerce/includes/class-wc-checkout.php(956): SkyVerge\WooCommerce\PluginFramework\v5_4_0\SV_WC_Payment_Gateway_Direct->process_payment(4648)
#3 /home3/hlzpdvmy/public_html/Apexa/wordpress/wp-content/plugins/woocommerce/includes/class-wc-checkout.p in /home3/hlzpdvmy/public_html/Apexa/wordpress/wp-content/plugins/woocommerce-square/includes/Gateway/API.php on line 320

/*log end*/

woocommerce shows : please try again or try an alternate form of payment