phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './owzzone_1/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 ('a855bf0084d5d793745e3d9729d88b16', -1, 1406798735, 1406798735, '36c4c46c', 60, 0, 0)

Line : 187
File : sessions.php