ERROR: can not find RHNS CA file

When

rpm -e rhn-client-tools-2.0.2-8.el7.noarch rhnsd-5.0.13-5.el7.x86_64 rhn-check-2.0.2-8.el7.noarch yum-rhn-plugin-2.0.1-6.el7.cloudlinux.noarch rhn-setup-2.0.2-8.el7.noarch rhnlib-2.5.65-2.el7.noarch