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 ('684da8b9e8899f86c0ccba579aa5e8c6', -1, 1406946278, 1406946278, '321088b7', -1, 0, 0)

Line : 187
File : sessions.php