Hosting problem

I used the domain and host from “perch”, but now the error started to take off, how to fix it?
“Sorry, your license key isn’t valid for this domain. Log into your Perch account and add the following as your live or testing domain”

Thanks God, it’s just a bug with version incompatibility. I thought my license was gone for no reason. I moved to the new windows vps hosting (you know, messing with reconfiguration), so the license problem simply finished me off. But, again, how come the older version doesn’t see the license? Is it some aggressive “asking” to update the Perch or the software drawback? Don’t get me wrong, but I was totally okay with the previous version. So, as I get, after changing a hosting within one version - everything should be okay?