Fatal error: Uncaught Error: Interface 'PhpOffice\PhpSpreadsheet\Writer\IWriter' not found in /opt/lampp/htdocs/Insurance-Integration-prod/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/BaseWriter.php:5 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/Insurance-Integration-prod/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/BaseWriter.php on line 5