phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './phpbb/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 ('16a1f894ffafce6a4bae615a6e794faf', -1, 1409675783, 1409675783, '171470a1', 2, 0, 0)

Line : 189
File : sessions.php