Error: Failed to download metadata for repo 'EA4-experimental-c10'

Symptoms

When trying to install a package, the following errors are displayed:

CONFIG_TEXT: Errors during downloading metadata for repository 'EA4-experimental-c10':
  - Status code: 404 for http://httpupdate.cpanel.net/ea4-experimental-c10-x86_64-mirrorlist (IP: 89.222.122.163)
  - Status code: 404 for http://httpupdate.cpanel.net/ea4-experimental-c10-x86_64-mirrorlist (IP: 89.222.122.161)
  - Status code: 404 for http://httpupdate.cpanel.net/ea4-experimental-c10-x86_64-mirrorlist (IP: 195.214.233.43)
Error: Failed to download metadata for repo 'EA4-experimental-c10': Cannot prepare internal mirrorlist: Status code: 404 for http://httpupdate.cpanel.net/ea4-experimental-c10-x86_64-mirrorlist (IP: 89.222.122.163)

Description

The issue is caused due to an incorrect mirrorlist URL in the EA4-experimental.repo file.

We've opened an internal case for our development team to investigate this further. For reference, the case number is CPANEL-52324. Follow this article to receive an email notification when a solution is published in the product. 

Workaround

Disable the "ea4-experimental" repo:

How do I disable a repository on a RHEL-based system?