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 ('eefe4a4c023211a3764df863c7a8eb97', -1, 1397781015, 1397781015, '36527ac2', -1, 0, 0)

Line : 172
File : sessions.php