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 ('e5bd5969d9f3960a3a5174be20e16559', -1, 1713961580, 1713961580, '0391ba06', -10, 0, 0)

Line : 187
File : sessions.php