Fatal error: Uncaught Error: Interface 'Box\Spout\Writer\Common\Manager\WorkbookManagerInterface' not found in /var/www/html/portal/vendor/box/spout/src/Spout/Writer/Common/Manager/WorkbookManagerAbstract.php:24
Stack trace:
#0 {main}
thrown in /var/www/html/portal/vendor/box/spout/src/Spout/Writer/Common/Manager/WorkbookManagerAbstract.php on line 24