1030 - Got error 122 from storage engine

select DISTINCT c.news_categories_id, cd.news_categories_name, cd.news_categories_heading_title, cd.news_categories_description, cd.news_categories_meta_title, cd.news_categories_meta_description, cd.news_categories_meta_keywords, c.news_categories_template, c.news_listing_template, c.date_added, c.news_categories_image, c.parent_id, c.news_categories_status from news n, news_to_categories n2c, news_categories c, news_categories_description cd where n.news_status = '1' and n.news_id = n2c.news_id and n2c.news_categories_id = c.news_categories_id and n2c.news_categories_id = cd.news_categories_id and c.group_permission_1 = 1 and (news_date_release <= '2012-05-24 04:06:51' or news_date_release = '0000-00-00 00:00:00') and cd.language_id = '2' and c.parent_id = '0' group by c.news_categories_id order by cd.news_categories_name

[XT SQL Error]