phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('16961e6bc061da9f64a5ec0567e752d8', -1, 1747695229, 1747695229, '12742606', 39, 0, 0)

Line : 190
File : sessions.php