PHP error

Hi, When using PHP 8.0 the plugins starts throwing these errors all the time: 2022-07-28T03:05:21+00:00 CRITICAL Uncaught TypeError: openssl_free_key(): Argument #1 ($key) must be of type OpenSSLAsymmetricKey, bool given in /home/user/domains/website/public_html/wp-content/plugins/mypos-virtual-for-woocommerce/includes/class-wc-gateway-ipc.php:547 Stack trace: #0 /home/user/domains/domain/public_html/wp-content/plugins/mypos-virtual-for-woocommerce/includes/class-wc-gateway-ipc.php(547): openssl_free_key() #1 /home/user/domains/domain/public_html/wp-content/plugins/mypos-virtual-for-woocommerce/includes/class-wc-gateway-ipc.php(714): WC_Gateway_IPC->is_valid_signature() #2 /home/user/domains/domain/public_html/wp-content/plugins/mypos-virtual-for-woocommerce/includes/class-wc-gateway-ipc.php(831): WC_Gateway_IPC->check_payment_status() #3 /home/user/domains/domain/public_html/wp-content/plugins/mypos-virtual-for-woocommerce/includes/class-wc-gateway-ipc.php(8): WC_Gateway_IPC->check_pending_payment_orders_statuses() #4 /home/user/domains/domain/public_html/wp-includes/class-wp-hook.php(307): mypos_check_pending_payment_orders_statuses() #5 /home/user/domains/domain/public_html/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters() #6 /home/user/domains/domain/public_html/wp-includes/plugin.php(524): WP_Hook->do_action() #7 /home/user/domains/domain/public_html/wp-cron.php(138): do_action_ref_array() #8 {main} thrown в /home/user/domains/domain/public_html/wp-content/plugins/mypos-virtual-for-woocommerce/includes/class-wc-gateway-ipc.php на ред 547