MySQL error in file: /engine/modules/show.full.php at line 31

Error Number: 1016

The Error returned was:
Can't open file: './novotroitsk/dle_post.frm' (errno: 24 - Too many open files)

SQL query:

SELECT * FROM dle_post LEFT JOIN dle_post_extras ON (dle_post.id=dle_post_extras.news_id) WHERE id = '9677'