phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1194 Table '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 ('352f4214495a0478160611877055096e', -1, 1369335485, 1369335485, '36eae731', -9, 0, 0)

Line : 172
File : sessions.php