23:17:17 Create new PHPExcel object<br />23:17:17 Set document properties<br />23:17:17 Add some data<br />23:17:17 Set header/footer<br />23:17:17 Add a drawing to the header<br /><br />
<b>Fatal error</b>:  Uncaught exception 'PHPExcel_Exception' with message 'File ./images/phpexcel_logo.gif not found!' in /var/www/html/back/vendor/phpoffice/phpexcel/Classes/PHPExcel/Worksheet/HeaderFooterDrawing.php:312
Stack trace:
#0 /var/www/html/back/vendor/phpoffice/phpexcel/Examples/04printing.php(72): PHPExcel_Worksheet_HeaderFooterDrawing-&gt;setPath('./images/phpexc...')
#1 {main}
  thrown in <b>/var/www/html/back/vendor/phpoffice/phpexcel/Classes/PHPExcel/Worksheet/HeaderFooterDrawing.php</b> on line <b>312</b><br />