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 ('735c55ed9bbeb99eaff320804ced34eb', -1, 1715308876, 1715308876, '12d98ba2', 7, 0, 0)

Line : 189
File : sessions.php