phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4df5ff99a028e98acd398ad8e2434262' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('4df5ff99a028e98acd398ad8e2434262', -1, 1741543298, 1741543298, '12754e4e', -4, 0, 0)

Line : 187
File : sessions.php