Fatal error: Uncaught Error: Interface "PhpOffice\PhpSpreadsheet\Writer\IWriter" not found in /home/rwebserver/public_html/mmei/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/BaseWriter.php:5
Stack trace:
#0 {main}
thrown in /home/rwebserver/public_html/mmei/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/BaseWriter.php on line 5