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 ('fc2b7d0d935ea4a7785535329ced9fa6', -1, 1713989258, 1713989258, '0aa8c802', 2, 0, 0)

Line : 200
File : sessions.php