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 ('ae6bbcd73b2952eade3911eb8829cbed', -1, 1730419273, 1730419273, '127785f1', 18, 0, 0)

Line : 195
File : sessions.php