15:53:39 Load workbook from Excel5 file<br /><br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function imagecreatefromstring() in /var/www/erp/PHPExcel-1.8.porsi/Classes/PHPExcel/Reader/Excel5.php:1068
Stack trace:
#0 /var/www/erp/PHPExcel-1.8.porsi/Classes/PHPExcel/IOFactory.php(192): PHPExcel_Reader_Excel5-&gt;load('14excel5.xls')
#1 /var/www/erp/PHPExcel-1.8.porsi/Examples/20readexcel5.php(49): PHPExcel_IOFactory::load('14excel5.xls')
#2 {main}
  thrown in <b>/var/www/erp/PHPExcel-1.8.porsi/Classes/PHPExcel/Reader/Excel5.php</b> on line <b>1068</b><br />