Hi Steven,
The code means the authorization make it to you from our side. First, make sure Cakewalk Command Center is up and running. Launch the Command Center application and verify it is connecting to the internet. If it is crashing this is what's causing the problem. Uninstall and re-install of Command Center should solve the issue.
If CCC runs ok, you may be running on a Windows user account that has restricted permissions. This might be a non-administrator account with restrictions on writing/copying files in certain directories. If this is the case, you might want to up the privileges of the account or run as an administrator.
Any aggressive firewall/anti-virus settings could also contribute to the issue. Try temporarily disabling any fireware or anti-virus software to see if Sonar will authorize.