It's setup already and just needs a provider to display programming. The settings available can be tweeked and vary by individual. What devices do you use and are they hardwired or using wifi? Do you have version 4,5.1 installed 9n both?
I would check the portal and make sure your password and username is correct as well as the xtreme code url to make sure you have them right. Submit a support ticket thru the portal and in the meantime check your messages I'll send you the web player url, I think it still works.
First try uninstalling tivimate restarting and reinstalling if this continues go to tivimate listing on Google play and email the developer and go to his reddit pages AlexR_15 (u/AlexR_15) - Reddit and present your issue.
There isn't any tivimate website let alone a contact form. You most likely have a hacked version supplied by maybe your service provider. I'm not sure you'll find support other than from them. On the other hand you might consider uninstalling it an buying a legit version from playstore.