先前的操作

先是是执行了

sudo dnf update
sudo dnf upgrade

然后没有显示需要更新，于是下一步

sudo dnf install -y epel-release

但是报错
                                            

No match for argument: epel-release
Error: Unable to find a match: epel-release

所以下一步

yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
sudo dnf install -y  http://rpms.remirepo.net/enterprise/remi-release-8.rpm
sudo dnf install -y dnf-utils

以为错误解决，于是下一步

dnf install -y dnf-utils

然而又报错

Remi's Modular repository for Enterprise Linux 8 - s390x                                                                98  B/s | 131  B     
Errors during downloading metadata for repository 'remi-modular':
- Status code: 403 for http://cdn.remirepo.net/enterprise/8/modular/s390x/mirror (IP: 176.31.103.194)
Error: Failed to download metadata for repo 'remi-modular': Cannot prepare internal mirrorlist: Status code: 403 for http://cdn.remirepo.net//8/modular/s390x/mirror (IP: 176.31.103.194)

至此本人无法解决，请问各位大佬如何解决此问题以安装 PHP ？