Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Reader\BaseReader" not found in /var/www/html/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Reader/Slk.php:13
Stack trace:
#0 {main}
thrown in /var/www/html/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Reader/Slk.php on line 13