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 ('da9cc8d8a8a9c32730971a5bac7e174c', -1, 1715345567, 1715345567, '12bfe458', -9, 0, 0)

Line : 189
File : sessions.php