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 ('a5af963009d3466f36e33e80c8b31aee', -1, 1715342755, 1715342755, '12e0497d', -9, 0, 0)

Line : 189
File : sessions.php