MySQL error in file: /engine/modules/show.full.php at line 1246

Error Number: 1191

The Error returned was:
Can't find FULLTEXT index matching the column list

SQL query:

SELECT id, date, short_story, xfields, title, category, alt_name, MATCH (title, short_story, full_story, xfields) AGAINST ('Мудрость приходит с годами ') as score FROM dle_post WHERE MATCH (title, short_story, full_story, xfields) AGAINST ('Мудрость приходит с годами ') AND id != 384 AND approve=1 AND date < '2025-07-17 00:25:06' ORDER BY score DESC LIMIT 5