Fatal error: Uncaught Error: Class "FTX\Api\HttpApi" not found in /home/julienke/www/sites/bbrochard/vendor/vdbelt/ftx-php/src/Api/Futures.php:7 Stack trace: #0 {main} thrown in /home/julienke/www/sites/bbrochard/vendor/vdbelt/ftx-php/src/Api/Futures.php on line 7