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 ('ed4d1c678ae2a1cc8d888d38c43e40b1', -1, 1713983496, 1713983496, '0aa8c802', 16, 0, 0)

Line : 200
File : sessions.php