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 ('9bae7bb12d9e09038615b24e6a7e38f4', -1, 1753040016, 1753040016, '126109ae', 3, 0, 0)

Line : 189
File : sessions.php