phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO ataricomputers_phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin, is_robot) VALUES ('9ceb3fe0a4318225a53599d391dc882f', -1, 1713447877, 1713447877, '12d93c23', -7, 0, '0', '0')

Line : 175
File : sessions.php