Fatal error: Uncaught Error: Class "Box\Spout\Common\Exception\SpoutException" not found in C:\xampp\htdocs\dfs_lead_generator_old\vendor\box\spout\src\Spout\Common\Exception\InvalidArgumentException.php:8 Stack trace: #0 {main} thrown in C:\xampp\htdocs\dfs_lead_generator_old\vendor\box\spout\src\Spout\Common\Exception\InvalidArgumentException.php on line 8