Fatal error: Uncaught Error: Class "ParagonIE\ConstantTime\Base64" not found in C:\xampp8\htdocs\Gsheet\vendor\paragonie\constant_time_encoding\src\Base64UrlSafe.php:33 Stack trace: #0 {main} thrown in C:\xampp8\htdocs\Gsheet\vendor\paragonie\constant_time_encoding\src\Base64UrlSafe.php on line 33