Isn’t aarch64 amr64/v8? I wonder why it’s trying to get a v7 image. While it’s not running, does this image work for you?
5f2777af9-v1.50.4-go1.17.5-arm64v8
Or otherwise perhaps:
5f2777af9-v1.50.4-go1.17.5-arm32v6
Maybe that can at least get your node up and running again until they fix the latest image.