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) VALUES ('6e01ee11a8f944c4882c69d7117601bc', -1, 1713955956, 1713955956, '0d3bda93', -4, 0)

Line : 158
File : sessions.php