Ошибка в запросе БД:

У вас ошибка в запросе. Изучите документацию по используемой версии MySQL на предмет корректного синтаксиса около 'groups as `user_groups`, karma as `user_karma`, friends_count as `user_friends_c' на строке 1

SELECT i.*, topic_thread_counter as `user_topic_thread_counter`, topic_post_counter as `user_topic_post_counter`, nickname as `user_nickname`, avatar as `user_avatar`, u.rating as `user_rating`, date_reg as `user_date_reg`, date_log as `user_date_log`, fsign as `user_signature`, groups as `user_groups`, karma as `user_karma`, friends_count as `user_friends_count`, is_locked as `user_is_locked`, IF(online.date_created IS NOT NULL AND TIMESTAMPDIFF(SECOND, online.date_created, NOW()) <= 180, 1, 0) as `is_online`
FROM cms_topic_threads i
INNER JOIN cms_users as u ON u.id = i.user_id
LEFT JOIN cms_sessions_online as online ON online.user_id = u.id
WHERE (i.thread_id IS NULL) AND (i.category_id = '27') AND (i.thread_id IS NULL) AND (i.category_id = '27')
GROUP BY i.id
ORDER BY i.fixed_top desc, i.date_update desc
LIMIT 0, 25

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