Problem installing SSL certificate

Hello I installed the ssl certificate via cpanel and it shows that the certificate has installed successfully, however it is not active on the domain now. when I check in ssl checker sites, the active ssl on this domain is another domain certificate. I checked the manage SSL hosts and I found that this certificate belongs to a domain which set as a primary domain in cpanel. by the way, I checked these paths too: /var/cpanel/ssl/apache_tls /var/cpanel/ssl/domains_tls and the correct certificate was set, however in /etc/httpd/conf/httpd.conf path, I couldn't find for my domain and in this file I only can see the shared certificates. Please help me Regards