docker pull php success

Dockerfile: FROM php sudo docker build -t php84 .

[+] Building 21.9s (3/3) FINISHED docker:default => [internal] load build definition from Dockerfile 0.0s => => transferring dockerfile: 46B 0.0s => ERROR [internal] load metadata for docker.io/library/php:latest 21.8s => [auth] library/php:pull token for registry-1.docker.io 0.0s

[internal] load metadata for docker.io/library/php:latest:

Dockerfile:1

1 | >>> FROM php 2 |

ERROR: failed to solve: php: failed to resolve source metadata for docker.io/library/php:latest: failed to authorize: failed to fetch oauth token: Post ";: dial tcp 103.214.168.106:443: connect: connection refused

why ?