Your license could not be activated because : invalid License File

Hello, I m getting this licence error. I followed this instruction : "If licensed, try running /usr/local/cpanel/cpkeyclt from the command line as root." And i got this message : root@vps121165 [~]# /usr/local/cpanel/cpkeyclt Updating cPanel license...Done. Update Failed! Error message: The cPanel license server replied that the license has been activated on too many machines. Please contact billing@cpanel.net The exact message was: The license has been activated too many times on different machines. (92.222.220.4)! Building global cache for cpanel...Done
Certainly i didn't use on other Server becaus i dont have any, but i reinstalled WHM many time in same day due to some DNS learning experiences :confused: So what can i do know !!? Thank you