Fatal error: Uncaught Error: Interface "PhpOffice\PhpSpreadsheet\IComparable" not found in C:\Apache24\htdocs\web\8.1\Erp_Fbn_Beta_Cen\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Style\Conditional.php:10 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\web\8.1\Erp_Fbn_Beta_Cen\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Style\Conditional.php on line 10