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 ('6c7e1e8d779ab980943415d7b19f375e', -1, 1409165775, 1409165775, '36a6b5bf', -1, 0, 0)

Line : 187
File : sessions.php