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 ('cc9773e0c206a5bb9e116d2e32ec6a22', -1, 1749569999, 1749569999, 'd849d8ea', -9, 0, 0)

Line : 190
File : sessions.php