You find an ACME client that fits your server setup (Windows/Linux/iOS)|(Apache/IIS/Nginx) etc.
And that can also do DNS authentication.
For Windows and IIS - I would recommend looking at a new PowerShell client:
Then get a cert for "api.primteksolusindo.com" and do not worry about the other cert with same name (in production).
You can have up to 5 certs with identical domain names without creating any problem.