Serviio console wont start

I have a problem with the console, i can't make it work.
I've read all the threads about this problem but i didnt find the answer.
Here is the log file

  Code:

2013-10-11 23:27:37,745 INFO  [ServiioConsole] Starting Serviio Console
2013-10-11 23:27:37,903 INFO  [ServiioConsole] Connecting to Serviio REST on localhost:23423
2013-10-11 23:27:38,696 INFO  [Messages] Loaded console message bundle for locale: en
2013-10-11 23:27:50,206 WARN  [ServiioStatusService] IllegalArgumentException occured. Returning error code 500 to the REST layer. Message: Invalid UUID string: 7b831ba999b44816909f0c341a682791
2013-10-11 23:27:50,315 ERROR [ServiioConsole] Unexpected exception occured: null
java.lang.NullPointerException
   at org.serviio.ui.view.swing.ServiioFrameView.onApplicationDataUpdate(ServiioFrameView.java:102)
   at org.serviio.console.ServiioConsole.updateLicense(ServiioConsole.java:284)
   at org.serviio.console.ServiioConsole.startLicenseCheckingThread(ServiioConsole.java:272)
   at org.serviio.console.ServiioConsole.main(ServiioConsole.java:108)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at com.exe4j.runtime.LauncherEngine.launch(Unknown Source)
   at com.exe4j.runtime.WinLauncher.main(Unknown Source)
2013-10-11 23:27:50,343 INFO  [ServiioConsole] Leaving Serviio Console

so, please if anyone can help me.
PS: is there any link to download the ver 1.21?

[zip]

Do you have the Pro license? Did you change it in any way?

yes, i have the pro license.
I've unistalled the 1.3.1 because it has problems with the playback, the server gets disconnected.
With the 1.2.1 everything is working fine, but the console isn't working. Before of all the procedure, the console was working fine.

[zip]

are you using server and the console, both the same version?

well, i've uninstalled everything and then install again; and the console start working.
So perhaps the problem was the difference of version.
I thought that i've made that procedure previously, evidently that wasn't real.
Sorry for the bother and thanks for the help