phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9f6969d500c74d87b9065380ab592033' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('9f6969d500c74d87b9065380ab592033', -1, 1768188191, 1768188191, 'd849d83b', 2, 0)

Line : 180
File : /www/includes/sessions.php