phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table '.\mymac\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 ('0b84b147a5d30577a9004ceb740a5690', -1, 1268346833, 1268346833, '266bbf6b', 3, 0, 0)

Line : 187
File : sessions.php