phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO blitz_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('d5e590c1d0cb7e3240bcdb7ad1c62ea1', -1, 1713978638, 1713978638, '0aa8c802', -1, 0, 0)

Line : 200
File : sessions.php