Error while export to csv - by: ripal

Hello,

I am getting following error while exporting csv file.

Version 6.3.3

2017-08-25 17:50:05.026 ***** ERROR ***** [V6.3.3] EXCEPTION *****
2017-08-25 17:50:05.026 ***** ERROR ***** [V6.3.3] on file '/home/sales/public_html/project/projeqtor/tool/projeqtor.php' at line (3113)
2017-08-25 17:50:05.026 ***** ERROR ***** [V6.3.3] cause = Call to undefined function iconv()
2017-08-25 17:50:05.027 ***** ERROR ***** [V6.3.3] => #0 /home/sales/public_html/project/projeqtor/tool/jsonQuery.php (658) -> encodeCSV()
2017-08-25 17:50:05.027 ***** ERROR ***** [V6.3.3] => #1 /home/sales/public_html/project/projeqtor/view/print.php (176) -> include()
2017-08-25 17:50:46.279 ***** ERROR ***** [V6.3.3] EXCEPTION *****
2017-08-25 17:50:46.280 ***** ERROR ***** [V6.3.3] on file '/home/sales/public_html/project/projeqtor/tool/projeqtor.php' at line (3113)
2017-08-25 17:50:46.280 ***** ERROR ***** [V6.3.3] cause = Call to undefined function iconv()
2017-08-25 17:50:46.280 ***** ERROR ***** [V6.3.3] => #0 /home/sales/public_html/project/projeqtor/tool/jsonQuery.php (658) -> encodeCSV()
2017-08-25 17:50:46.280 ***** ERROR ***** [V6.3.3] => #1 /home/sales/public_html/project/projeqtor/view/print.php (176) -> include()

Regards
Ripal Shah