このエラーメッセージに関する原因と対処に関して説明します。
エラーメッセージ(英語)：
invalid repository policy provided
対処
関連リンク
AWS ECR CF template fails with 'Invalid repository policy provided ...
https://stackoverflow.com/questions/46001417/aws-ecr-cf-template-fails-with-invalid-repository-polic・・・
terraform-providers/terraform-provider-aws - GitHub
https://github.com/terraform-providers/terraform-provider-aws/issues/1164
terraform-providers/terraform-provider-aws - GitHub
https://github.com/terraform-providers/terraform-provider-aws/issues/1286
amazon web services - ECR cross-account pull permissions - Server ...
https://serverfault.com/questions/897392/ecr-cross-account-pull-permissions
amazon web services - ECR cross-account pull permissions - Server ...
https://serverfault.com/questions/897392/ecr-cross-account-pull-permissions?rq=1