When generating a CSR for a wildcard TLS/SSL certificate you have to ensure the domain is in the correct format.
This occurs when you are attempting to configure your order using a wildcard domain such as *.example.com but your order is not for a wildcard certificate.
This means you have purchased a wildcard SSL certificate but your CSR does not contain a wildcard domain.
When you generate your CSR or enter the domain during the order process make sure you include the wildcard element. For example a wildcard certificate for Servertastic would be in the format *.servertastic.com
The wildcard SSL certificates issued by ServerTastic cover both *.yourdomain.com and yourdomain.com
Due to strict validation requirements set down by all Certificate Authorities wildcard EV certificates are not available from any provider.