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 ('b71706e56fce699f3c1df2d7494c8777', -1, 1726880723, 1726880723, '03152e5c', -10, 0, 0)

Line : 189
File : sessions.php