PDOException: SQLSTATE[42000]: Syntax error or access violation: 1064 index globalplaza3_content: index not preread

Stack trace:
at /srv/www/globalplaza.hu/gothic/db/pdo.php:44
0# /srv/www/globalplaza.hu/gothic/db/pdo.php:44:  PDOStatement->execute()
1# /srv/www/globalplaza.hu/gothic/common.php:1072:  GtcPDO->smartQuery("SELECT id
FROM globalplaza3_content
WHERE MATCH(?) AND filter_id_category_path IN (772) AND content_type_sql IN (?) AND id != ? AND has_content_slide_image = 1 AND has_product_price = 1
LIMIT 0, 8
OPTION ranker=matchany", array(3))
2# /srv/www/globalplaza.hu/gothic/common.php:1218:  GtcQueryIterator->start()
3# /srv/www/globalplaza.hu/gothic/common.php:935:  GtcUnionIterator->start()
4# /srv/www/globalplaza.hu/gothic/common.php:983:  GtcAbstractProxyIterator->start()
5# /srv/www/globalplaza.hu/gothic/common.php:1148:  GtcFilterIterator->start()
6# /srv/www/globalplaza.hu/modules/sitetool.php:579:  GtcLimitIterator->start()
7# /srv/www/globalplaza.hu/product.php:275:  htExtendWithMysqlIterator->__construct(Object(GtcLimitIterator), "SELECT c.id, c.mode, c.name, c.s_highlight, c.rating_avg,
	i1.id AS img_id, i1.img_ext, i1.res_name AS img_res_name,
	i2.id AS boxtitle_img_id, i2.img_ext AS boxtitle_img_ext, i2.res_name AS boxtitle_img_res_name,
	i3.id AS gallery_img_id, i3.medium_ext AS gallery_img_ext, i3.res_name AS gallery_img_res_name,
	c_brand.name AS brand_name,
	MIN(jsp.p ... = NOW() OR c.ts_delayed_end IS NULL)
GROUP BY c.id", array(0))
8# /srv/www/globalplaza.hu/gothic/common.php:497:  Product->beforeRender()
9# /srv/www/globalplaza.hu/gothic/common.php:800:  Template->_render()
10# /srv/www/globalplaza.hu/ctempl/frame.jarl.php:541:  CachedFilteredTemplate->render(Object(SiteFrameTemplate))
11# /srv/www/globalplaza.hu/gothic/common.php:538:  include("/srv/www/globalplaza.hu/ctempl/frame.jarl.php")
12# /srv/www/globalplaza.hu/gothic/common.php:800:  Template->_render()
13# /srv/www/globalplaza.hu/modules/frame.php:321:  CachedFilteredTemplate->render()
14# /srv/www/globalplaza.hu/product.php:370:  SiteFrame("Product")