BUG #17612: Error on your site

The following bug has been logged on the website:

Bug reference:      17612
Logged by:          Akmal Hakimi
Email address:      akmal@innovative.edu.my
PostgreSQL version: 11.0
Operating system:   CentOS 7
Description:

https://download.postgresql.org/pub/repos/yum/srpms/testing/12/redhat/rhel-7-x86_64/repodata/repomd.xml.asc

why this link is error ? I can't install the postgresql because link is
showing error 404 nginx