phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './motherbo_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 ('735dcb6112b50c9359a25da3a6cbac42', -1, 1284095612, 1284095612, '266bbf6e', -4, 0, 0)

Line : 187
File : sessions.php