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 ('58bb90405c1ff52a6a5712e47af76e1e', -1, 1406784076, 1406784076, '1716b3d2', -1, 0, 0)

Line : 187
File : sessions.php