phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './fishtalk/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 ('18176a9bfb01fcaaaaf0d011c27bbf9e', -1, 1398300087, 1398300087, '43ca3870', -1, 0, 0)

Line : 189
File : sessions.php