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 ('ea6c268cd7c7fa9cf2e821f9bf33ad5b', -1, 1713508823, 1713508823, '030f1be8', 0, 0, 0)

Line : 187
File : sessions.php