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 ('e6e69dc331f5c3bb8b81b716ff6e57a0', -1, 1715048738, 1715048738, '12776b60', 7, 0, 0)

Line : 189
File : sessions.php