phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9f84c463b8b5aec339761dd984f60618' 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 ('9f84c463b8b5aec339761dd984f60618', -1, 1715200638, 1715200638, '12bc1d49', -4, 0, 0)

Line : 187
File : sessions.php