Serviio not working after Fedora upgratde

Hello

I've upgraded my server to Fedora 18. Serviio 1.1 is not working anymore
1st step: Serviio exposed an empty video library, so I deleted the library DB
Now I receive an error when launching Serviio

  Code:

2012-12-22 23:11:11,026 INFO  [WebServer] Socket buffer set to 65535 bytes
2012-12-22 23:11:11,032 INFO  [RestletServer] Starting Restlet server (/rest) exposed on port 23423
2012-12-22 23:11:11,136 INFO  [RestletServer] Starting Restlet server (/cds) exposed on port 23424
2012-12-22 23:11:11,137 INFO  [RestletServer] Starting Restlet server (/mediabrowser) exposed on port 23424
2012-12-22 23:11:11,173 INFO  [DBSchemaUpdateExecutor] Checking if DB schema needs to be updated
2012-12-22 23:11:15,675 WARN  [ServiioStatusService] ExceptionInInitializerError occured. Returning error code 500 to the REST layer
. Message: null
2012-12-22 23:11:15,752 INFO  [DBSchemaUpdateExecutor] Updating DB schema
2012-12-22 23:11:16,316 WARN  [ServiioStatusService] NoClassDefFoundError occured. Returning error code 500 to the REST layer. Messa
ge: Could not initialize class org.serviio.config.Configuration
2012-12-22 23:11:16,417 WARN  [ServiioStatusService] NoClassDefFoundError occured. Returning error code 500 to the REST layer. Messa
ge: Could not initialize class org.serviio.config.Configuration
etc....


Any suggestion?