I am trying to use local mirror for my build activities in my local OBS. I have created a debian-9 mirror locally. However, it is not working

It says,
The repository setup is broken, build or publish not possible
Below is my meta configuration of the project. Not using public key as I have disabled it in my mirror. I have tested the mirror, it works fine when added in the sources.list file in any Debian 9 machine

<project name="Debian:9od">
<title/>
<description/>
<person userid="Admin" role="maintainer"/>
<repository name="local_debina9">
<download arch="x86_64" url="http://my.apt.mirror/public/" repotype="deb"/>
<arch>x86_64</arch>
</repository>
</project>