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 ('472ecfab6188aee1d5d310933df03107', -1, 1749187150, 1749187150, 'd849d801', 3, 0, 0)

Line : 190
File : sessions.php