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 ('07b70820380aead7a3a9e2e4a6c5fd5d', -1, 1713960185, 1713960185, '1275c4b8', -4, 0, 0)

Line : 187
File : sessions.php