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 ('6e9e60df2fb7b96c93c2d1938dc70a50', -1, 1715213816, 1715213816, '0385579c', 2, 0, 0)

Line : 189
File : sessions.php