( ! ) Fatal error: Uncaught Error: Interface "PhpOffice\PhpSpreadsheet\Calculation\Engine\Operands\Operand" not found in C:\wamp64\www\geega\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Calculation\Engine\Operands\StructuredReference.php on line 11
( ! ) Error: Interface "PhpOffice\PhpSpreadsheet\Calculation\Engine\Operands\Operand" not found in C:\wamp64\www\geega\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Calculation\Engine\Operands\StructuredReference.php on line 11
Call Stack
#	Time	Memory	Function	Location
1	0.0354	608400	{main}( )	...\StructuredReference.php:0