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 ('9be3a14fa4b9f38a9603badd4014c54b', -1, 1406886562, 1406886562, '36edf59f', -1, 0, 0)

Line : 187
File : sessions.php