Could not query private message post information

DEBUG MODE

SQL Error : 144 Table './forum/phpbb_privmsgs_text' is marked as crashed and last (automatic?) repair failed

SELECT u.username AS username_1, u.user_id AS user_id_1, u2.username AS username_2, u2.user_id AS user_id_2, u.user_sig_bbcode_uid, u.user_posts, u.user_from, u.user_website, u.user_email, u.user_icq, u.user_aim, u.user_viewaim, u.user_yim, u.user_regdate, u.user_msnm, u.user_viewemail, u.user_rank, u.user_sig, u.user_sig_image, u.user_avatar, pm.*, pmt.privmsgs_bbcode_uid, pmt.privmsgs_text FROM (phpbb_privmsgs pm, phpbb_privmsgs_text pmt, phpbb_users u, phpbb_users u2) WHERE pm.privmsgs_id = 213205 AND pmt.privmsgs_text_id = pm.privmsgs_id AND pm.privmsgs_to_userid = 18189 AND ( pm.privmsgs_type = 0 OR pm.privmsgs_type = 1 OR pm.privmsgs_type = 5 ) AND u.user_id = pm.privmsgs_from_userid AND u2.user_id = pm.privmsgs_to_userid

Line : 308
File : privmsg.php