@ookris The developer cannot help you here; they risk getting into real trouble if they do.
For pro or commercial product support please contact the developer directly on their site. This includes any pre-sales, refund or payment cancellation topics as well.
https://www.cusrev.com/business/contact-us.html
As the developer is aware, commercial products are not supported in these forums. I am sure they will have no problem supporting you there.