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 ('c8b5b9da6b07fa911cd3c300eb3feb98', -1, 1715346388, 1715346388, '0391978d', -4, 0, 0)

Line : 189
File : sessions.php