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 ('0a3d128b12f6bba43b9b31aa69ebb2b7', -1, 1713948239, 1713948239, '039061bd', 3, 0, 0)

Line : 187
File : sessions.php