I am using netbeans 8.2. My build is successful yet the window of the app is not coming. Please see the attachment for output

I get the following line of error in output:

Could not open/create prefs root node Software\JavaSoft\Prefs at root 0x80000002. Windows RegCreateKeyEx(...) returned error code 5. java.lang.ClassNotFoundException: net.Shubham.Roarrr2018.MyApplication