Error when adding "dnf copr enable @spacewalkproject/spacewalk-2.10-client"

I am getting this error when trying to install spacewalk client on one of the Fedora 31 server. # dnf copr enable @spacewalkproject/spacewalk-2.10-client Enabling a Copr repository. Please note that this repository is not part of the main distribution, and quality may vary. The Fedora Project does not exercise any power over the contents of this repository beyond the rules outlined in the Copr FAQ at , and packages are not held to any quality or security level. Please do not file bug reports about these packages in Fedora Bugzilla. In case of problems, contact the owner of this repository. Do you really want to enable copr.fedorainfracloud.org/@spacewalkproject/spacewalk-2.10-client? [y/N]: y Error: This repository does not have any builds yet so you cannot enable it now. I remember able to install it on server A but when try same on server B getting this error. I am not sure whats different. Server A $ cat /etc/os-release . NAME=Fedora VERSION="31 (Server Edition)" ID=fedora VERSION_ID=31 VERSION_CODENAME="" PLATFORM_ID="platform:f31" PRETTY_NAME="Fedora 31 (Server Edition)" ANSI_COLOR="0;34" LOGO=fedora-logo-icon CPE_NAME="cpe:/o:fedoraproject:fedora:31" HOME_URL="https://fedoraproject.org/ " DOCUMENTATION_URL="https://docs.fedoraproject.org/en-US/fedora/f31/system-administrators-guide/ " SUPPORT_URL="https://fedoraproject.org/wiki/Communicating_and_getting_help " BUG_REPORT_URL="https://bugzilla.redhat.com/ " REDHAT_BUGZILLA_PRODUCT="Fedora" REDHAT_BUGZILLA_PRODUCT_VERSION=31 REDHAT_SUPPORT_PRODUCT="Fedora" REDHAT_SUPPORT_PRODUCT_VERSION=31 PRIVACY_POLICY_URL="https://fedoraproject.org/wiki/Legal:PrivacyPolicy " VARIANT="Server Edition" VARIANT_ID=server Server B# cat /etc/os-release NAME=Fedora VERSION="31 (Server Edition)" ID=fedora VERSION_ID=31 VERSION_CODENAME="" PLATFORM_ID="platform:f31" PRETTY_NAME="Fedora 31 (Server Edition)" ANSI_COLOR="0;34" LOGO=fedora-logo-icon CPE_NAME="cpe:/o:fedoraproject:fedora:31" HOME_URL="https://fedoraproject.org/ " DOCUMENTATION_URL="https://docs.fedoraproject.org/en-US/fedora/f31/system-administrators-guide/ " SUPPORT_URL="https://fedoraproject.org/wiki/Communicating_and_getting_help " BUG_REPORT_URL="https://bugzilla.redhat.com/ " REDHAT_BUGZILLA_PRODUCT="Fedora" REDHAT_BUGZILLA_PRODUCT_VERSION=31 REDHAT_SUPPORT_PRODUCT="Fedora" REDHAT_SUPPORT_PRODUCT_VERSION=31 PRIVACY_POLICY_URL="https://fedoraproject.org/wiki/Legal:PrivacyPolicy " VARIANT="Server Edition" VARIANT_ID=server Here is the one of the system where I was able to installed earlier: # rhn_register --version rhn_register (Spacewalk Client Tools) 2.10.10-1.fc31 Copyright (C) 1999--2014 Red Hat, Inc. Licensed under the terms of the GPLv2. # cat /etc/redhat-release Fedora release 31 (Thirty One)