phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './assoc_phpbbv2/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 ('ac6f8cbd3ef4df9c296943a9184f096f', -1, 1398082903, 1398082903, '36e278b7', 35, 0, 0)

Line : 187
File : sessions.php