hey how create this type wildcard subdomain create like *.example.com.
You can’t
I bought MultiSaas script from Codecanyon and the author even says in the sale page to not install Cyperpanel since their script requires Wildcard Subdomains and SSL. This is the link:
I hope Usman and his team have a plan to integrate Let’s Encrypt WIldcard SSL. Cyberpanel needs this feature IMO