MySQL error in file: /engine/modules/show.full.php at line 1002

Error Number: 1214

The Error returned was:
The used table type doesn't support FULLTEXT indexes

SQL query:

SELECT id, date, short_story, xfields, title, category, alt_name FROM dle_post WHERE MATCH (title, short_story, full_story, xfields) AGAINST ('Вохма, Костромская область, Россия → Кострома, Костромская область, Россия - ') AND id != 38 AND approve=1 AND date < '2017-07-28 15:46:41' LIMIT 5