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 ('90b1aa159ab0b35d6c81fb7c5887414b', -1, 1714028239, 1714028239, '12dd35d1', -11, 0, 0)

Line : 187
File : sessions.php