Hello,
I've done some tests and I think that you're issue is coming from the "administrator\components\com_hikashop\helpers\pagination.php" file, so you'll just have to edit these lines :
if(version_compare(JVERSION,'1.6','>=')){
$display = JText::_('JGLOBAL_DISPLAY_NUM');
}else{
$display = JText::_('Display Num');
}
By :
if(version_compare(JVERSION,'1.6','>=')){
$display = JText::_('JGLOBAL_DISPLAY_NUM');
}else{
$display = JText::_('DISPLAY NUM');
}
So you'll have the use the "DISPLAY NUM" keyword and not "JGLOBAL_DISPLAY_NUM".