Fatal error: Uncaught Error: Interface "Bitpay\InvoiceInterface" not found in /home/narrowhostcom/public_html/oldportal.narrowhost.com/vendor/bitpay/php-client/src/Bitpay/Invoice.php:14 Stack trace: #0 {main} thrown in /home/narrowhostcom/public_html/oldportal.narrowhost.com/vendor/bitpay/php-client/src/Bitpay/Invoice.php on line 14