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 ('fc19f14d9defc2d0ff3d3e45fa89b330', -1, 1713295731, 1713295731, '12bfd342', -10, 0, 0)

Line : 187
File : sessions.php