In the future, if you have a different concern from the original thread post, please start a new thread.
To answer your question, this means that the server thinks something is wrong with your version of TorrentRover. Either it is a hacked/cracked version of the software (did you get it somewhere other than on TorrentRover.com?) or it is an old version that is no longer in service. The only other possibility is that there is bug caused by not having the latest version of the .NET Framework 3.5 SP1. If you believe this is the problem, please update here:
https://www.microsoft.com/en-us/downloa ... x?id=25150