Fatal error: Uncaught Error: Class "PHPExcel_Worksheet_Drawing" not found in /var/www/erp/PHPExcel-1.8-/Classes/PHPExcel/Worksheet/HeaderFooterDrawing.php:28
Stack trace:
#0 {main}
thrown in /var/www/erp/PHPExcel-1.8-/Classes/PHPExcel/Worksheet/HeaderFooterDrawing.php on line 28