phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('e99be2dc9f0616f1842c1be2b0ee7c5c', -1, 1715308457, 1715308457, '12bc420d', 2, 0, 0)

Line : 189
File : sessions.php