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 ('80e6b938e9e7d45c5deea51172a0468b', -1, 1713417549, 1713417549, '12777e50', 3, 0, 0)

Line : 187
File : sessions.php