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 ('fb2f67959bf8a83549e32823fb8611d3', -1, 1398063863, 1398063863, '36c6ca94', -1, 0, 0)

Line : 172
File : sessions.php