registry.access.redhat.com 504 Gateway Time-out

When I downloaded the image using the OpenShift Pipeline, Received Unexpected HTTP Status: 504 Gateway time-out came up occasionally

Failed to pull image "registry.access.redhat.com/ubi8/ubi-minimal:latest": rpc error: code = Unknown desc = Error reading manifest latest in registry.access.redhat.com/ubi8/ubi-minimal: received unexpected HTTP status: 504 Gateway Time-out