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 ('c1442b686be5f1eaac2f07a516963f5d', -1, 1747646207, 1747646207, '12dbff54', 30, 0, 0)

Line : 190
File : sessions.php