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 ('291d26ca38e514a7e64e89246d603163', -1, 1413845028, 1413845028, '36f2e76d', -1, 0, 0)

Line : 187
File : sessions.php