I followed the tutorial on [installing flocker node service on centos7](https://flocker-docs.clusterhq.com/en/latest/flocker-standalone/install-node.html#installing-on-centos-7), but got the 404 error reponse while download the yum repo [https://clusterhq-archive.s3.amazonaws.com/centos/clusterhq-release.el7.centos.noarch.rpm](https://clusterhq-archive.s3.amazonaws.com/centos/clusterhq-release.el7.centos.noarch.rpm). Please could anybody tell me what i can do next?