phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd9aa17e8799b7aab779ae089d3b0bcd7' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('d9aa17e8799b7aab779ae089d3b0bcd7', -1, 1768471221, 1768471221, 'd849d8a4', 2, 0)

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