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 ('4467ce7ec2bf412c0b7d6f69abe17779', -1, 1713868444, 1713868444, '038cbaf1', 3, 0, 0)

Line : 187
File : sessions.php