Fatal error: Uncaught Error: Interface "Box\Spout\Writer\WriterInterface" not found in C:\xampp\htdocs\dfs_lead_generator_old\vendor\box\spout\src\Spout\Writer\WriterAbstract.php:22 Stack trace: #0 {main} thrown in C:\xampp\htdocs\dfs_lead_generator_old\vendor\box\spout\src\Spout\Writer\WriterAbstract.php on line 22