MySQL error in file: /engine/classes/comments.class.php at line 758

Error Number: 144

The Error returned was:
Table './8dle/8dle_users' is marked as crashed and last (automatic?) repair failed

SQL query:

SELECT 8dle_comments.id, post_id, 8dle_comments.user_id, date, autor as gast_name, 8dle_comments.email as gast_email, text, ip, is_register, 8dle_comments.rating, 8dle_comments.vote_num, 8dle_comments.parent, name, 8dle_users.email, news_num, comm_num, user_group, lastdate, reg_date, signature, foto, fullname, land, xfields FROM 8dle_comments LEFT JOIN 8dle_users ON 8dle_comments.user_id=8dle_users.user_id WHERE 8dle_comments.post_id = '4247' ORDER BY 8dle_comments.id ASC