Solution:
Go to eshop-shortcodes.php and remove this code:
case 'optionset':
if(isset($eshop_product['optset'])){
$osets=$eshop_product['optset'];
$thclass='';
$thprice=__('Price','eshop');
if(isset($eshop_product['sale']) && $eshop_product['sale']=='yes'){
$thprice=__('Sale Price','eshop');
$thclass=' class="sale"';
}
if(is_array($osets)){
$listed.='<dt>'.__('Additional Options','eshop')."</dt>\n";
$listed.='<dd>';
$opttable=$wpdb->prefix.'eshop_option_names';
$optsettable=$wpdb->prefix.'eshop_option_sets';
foreach($osets as $optid){
$myrowres=$wpdb->get_results($wpdb->prepare("select name as optname, price,weight from $optsettable where optid='%d' ORDER by id ASC",$optid));
$egrab=$wpdb->get_row($wpdb->prepare("select * from $opttable where optid='%d' LIMIT 1",$optid));
if(isset($egrab->name)){
$ename=$egrab->name;
$etype=$egrab->type;
$edesc=$egrab->description;
$checkrows=sizeof($myrowres);
$i=1;
$tbody='';
foreach($myrowres as $myrow){
if($myrow->weight=='')
$myrow->weight='0';
$alt = ($i % 2) ? '' : ' class="alt"';
$tbody.="<tr".$alt.">\n".
'<th id="'.$eshopletter.'eshopnumrow'.$i.'" headers="'.$eshopletter.'eshopnum">'.$i.'</th>';
if(!in_array('option',$willhide))
$tbody.='<td headers="'.$eshopletter.'eshopoption '.$eshopletter.'eshopnumrow'.$i.'">'.stripslashes(esc_attr($myrow->optname)).'</td>';
if(!in_array('price',$willhide))
$tbody.='<td headers="'.$eshopletter.'eshopprice '.$eshopletter.'eshopnumrow'.$i.'"'.$thclass.'>'.sprintf( __('%1$s%2$s','eshop'), $currsymbol, number_format_i18n($myrow->price,__('2','eshop'))).'</td>';
if($eshopoptions['shipping']=='4' && !in_array('weight',$willhide)){
/* ,'1- weight 2-weight symbol' */
$tbody.='<td headers="'.$eshopletter.'eshopweight '.$eshopletter.'eshopnumrow'.$i.'">'.sprintf( __('%1$s %2$s','eshop'), number_format_i18n($myrow->weight,__('2','eshop')),$weightsymbol).'</td>';
}
$tbody.="</tr>\n";
$i++;
}
$listed.='<strong>'.stripslashes(esc_attr($ename)).'</strong><br />';
$listed.=nl2br(stripslashes(esc_attr($edesc)));
$listed.='<table class="eshop" summary="'.__('Product Options by option and price','eshop').'">
<thead><tr>
<th id="'.$eshopletter.'eshopnum">#</th>';
if(!in_array('option',$willhide))
$listed.='<th id="'.$eshopletter.'eshopoption">'.__('Option','eshop').'</th>';
if(!in_array('price',$willhide)){
$listed.='<th id="'.$eshopletter.'eshopprice"'.$thclass.'>'.$thprice.'</th>';
}
if($eshopoptions['shipping']=='4' && !in_array('weight',$willhide))
$listed.='<th id="'.$eshopletter.'eshopweight">'. __('Weight','eshop').'</th>';
$listed.='</tr></thead><tbody>'."\n";
$listed.=$tbody;
$listed.='</tbody></table>'."\n";
$eshopletter++;
}
}
$listed.="</dd>\n";
}
}
break;