phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './phpbb/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('f7ae0ae79fd9058f7c9d909d4e699872', -1, 1409701086, 1409701086, '36e22b9b', -1, 0, 0)

Line : 189
File : sessions.php