phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '555a96ffe9b306b80b88c95a89b0cfb9' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('555a96ffe9b306b80b88c95a89b0cfb9', -1, 1714728001, 1714728001, '12743e2d', -8, 0, 0)

Line : 187
File : sessions.php