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 ('67c5b8e0b1386e690ee5b5014769d1a3', -1, 1714010011, 1714010011, '12dbe067', -2, 0, 0)

Line : 187
File : sessions.php