The same error occurs on all our WP/WC sites that use this plugin.
PHP 7.4.3, WooCommerce 8.2.2, WordPress 6.4.1
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[Thu Nov 09 10:20:17.407772 2023] [error] mod_proxy_fcgi.c(887): Got error ‘PHP message: Fatal error: ?require(): Failed opening required ‘………/wp-content/plugins/woocommerce-billink/vendor/composer/../symfony/deprecation-contracts/function.php’ (include_path=’.’) in ………/wp-content/plugins/woocommerce-billink/vendor/composer/autoload_real.php on line 39′
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I tried to use the plugin version 2.2.0 (I rolled back it from a backup) but in this case an unknown error appears on the checkout page.