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 ('d10119d2b4ca4f05d588992c4d4d8b66', -1, 1265668782, 1265668782, '266bbf67', 19, 0, 0)

Line : 187
File : sessions.php