phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './illustra_phpbb1/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 ('d52e73c782c6562e569f75192732b84b', -1, 1406791324, 1406791324, '36c5d792', -1, 0, 0)

Line : 187
File : sessions.php