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 ('5c3dd7d9754e9739b79e306a3bfec90d', -1, 1713868026, 1713868026, '038d1886', -4, 0, 0)

Line : 187
File : sessions.php