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 ('06eb67b8c5f59a22cc7634d31beec4b7', -1, 1750235075, 1750235075, 'd849d850', -9, 0, 0)

Line : 190
File : sessions.php