phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a9d8d15f07a5bbfdf42a871727c6b3bb' 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 ('a9d8d15f07a5bbfdf42a871727c6b3bb', -1, 1714262360, 1714262360, '0380c7d2', -9, 0, 0)

Line : 187
File : sessions.php