Fatal error: Uncaught Error: Class 'Automattic\WooCommerce\Xero\Vendor\League\OAuth2\Client\Grant\AbstractGrant' not found in /home/adaptyo3/public_html/wp-content/plugins/woocommerce-xero/lib/packages/league/oauth2-client/src/Grant/ClientCredentials.php:25 Stack trace: #0 {main} thrown in /home/adaptyo3/public_html/wp-content/plugins/woocommerce-xero/lib/packages/league/oauth2-client/src/Grant/ClientCredentials.php on line 25