Fatal error: Uncaught Error: Class 'Box\Spout\Writer\WriterAbstract' not found in /var/www/html/portal/vendora/box/spout/src/Spout/Writer/CSV/Writer.php:15 Stack trace: #0 {main} thrown in /var/www/html/portal/vendora/box/spout/src/Spout/Writer/CSV/Writer.php on line 15