Can't access Google Admin Console
If your Google Account is migrated to Google Apps, some services are disabled in your Google Admin Console. By default, this includes the Custom Search Engine service.
If you have administrator privileges for your Google Apps account, you can enable the Custom Search Engine service by turning the service on in your Admin console. If the Custom Search Engine service isn't available in your account, try adding the service to your Google Apps account.
If you don't have administrator privileges, contact someone in your organization who does, and they can do this for you.