在AWS上创建EC2示例后，我已使用SSH（PEM文件）连接到服务器，并尝试在服务器上安装Cpanel，但我在尝试更新或安装任何内容时遇到此错误。
我的命令：

yum update

我得到的错误：

amzn2extra-docker                                                                                      | 3.0 kB  00:00:00
amzn2extra-epel                                                                                        | 3.0 kB  00:00:00
amzn2extra-kernel-5.10                                                                                 | 3.0 kB  00:00:00
epel/x86_64/metalink                                                                                   |  14 kB  00:00:00
remi-safe                                                                                              | 3.0 kB  00:00:00
http://r.vestacp.com/cmmnt//x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
Trying other mirror.

One of the configured repositories failed (Vesta - cmmnt),
and yum doesn't have enough cached data to continue. At this point the only
safe thing yum can do is fail. There are a few ways to work "fix" this:

  1. Contact the upstream for the repository and get them to fix the problem.

  2. Reconfigure the baseurl/etc. for the repository, to point to a working
     upstream. This is most often useful if you are using a newer
     distribution release than is supported by the repository (and the
     packages for the previous distribution release still work).

  3. Run the command with the repository temporarily disabled
         yum --disablerepo=vesta ...

  4. Disable the repository permanently, so yum won't use it by default. Yum
     will then just ignore the repository until you permanently enable it
     again or use --enablerepo for temporary usage:

         yum-config-manager --disable vesta
     or
         subscription-manager repos --disable=vesta

  5. Configure the failing repository to be skipped, if it is unavailable.
     Note that yum will try to contact the repo. when it runs most commands,
     so will have to try and fail each time (and thus. yum will be be much
     slower). If it is a very temporary problem though, this is often a nice
     compromise:

         yum-config-manager --save --setopt=vesta.skip_if_unavailable=true

failure: repodata/repomd.xml from vesta: [Errno 256] No more mirrors to try.
http://r.vestacp.com/cmmnt//x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found

P.S我正在使用作为根用户。
软件版本：亚马逊Linux 2