Fatal error: Uncaught Error: Interface 'PhpOffice\PhpSpreadsheet\IComparable' not found in C:\Apache24\htdocs\cwlms\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Worksheet\Worksheet.php:32 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cwlms\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Worksheet\Worksheet.php on line 32