( ! ) Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Calculation\Database\DatabaseAbstract" not found in /var/www/html/gestion-escuelas/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Database/DSum.php on line 8
( ! ) Error: Class "PhpOffice\PhpSpreadsheet\Calculation\Database\DatabaseAbstract" not found in /var/www/html/gestion-escuelas/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Database/DSum.php on line 8
Call Stack
#	Time	Memory	Function	Location
1	0.0002	580832	{main}( )	.../DSum.php:0