phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6836445a5b91828a73a4ee9de9858d4b' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('6836445a5b91828a73a4ee9de9858d4b', -1, 1764104281, 1764104281, 'd849d80a', -9, 0)

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