2013-04-25 22:06:35   I   msg:[UVOX2] 1269807297 Sending Ultravox 2.1 authentication
2013-04-25 22:06:35   I   msg:[UVOX2] 1269807297 Mime type
2013-04-25 22:06:35   I   msg:[UVOX2] 1269807297 Broadcast setup
2013-04-25 22:06:35   I   msg:[UVOX2] 1269807297 Negotiating buffer sizes
2013-04-25 22:06:35   I   msg:[UVOX2] 1269807297 Negotiated buffer size is 320KB
2013-04-25 22:06:35   I   msg:[UVOX2] 1269807297 Negotiating payload sizes
2013-04-25 22:06:35   I   msg:[UVOX2] 1269807297 Negotiated payload size is 16377
2013-04-25 22:06:35   I   msg:[UVOX2] 1269807297 Configuring ICY-NAME [NAME RADIO]
2013-04-25 22:06:35   I   msg:[UVOX2] 1269807297 Configuring ICY-GENRE [Gospel]
2013-04-25 22:06:35   I   msg:[UVOX2] 1269807297 Configuring ICY-URL [http://www.radio.com.br]
2013-04-25 22:06:35   I   msg:[UVOX2] 1269807297 Configuring ICY-PUB [1]
2013-04-25 22:06:35   I   msg:[UVOX2] 1269807297 Flush metadata
2013-04-25 22:06:35   I   msg:[UVOX2] 1269807297 Standby
2013-04-25 22:06:35   E   msg:[UVOX2] 1269807297 Standby failed because Stream in use
2013-04-25 22:06:35   E   msg:[UVOX2] 1269807297 Waiting 30 seconds
2013-04-25 22:07:01   I   msg:[UVOX2] 1269807297 Creating stream socket
2013-04-25 22:07:01   I   msg:[UVOX2] 1269807297 Connecting to stream host
2013-04-25 22:07:01   I   msg:[UVOX2] 1269807297 Sending Ultravox 2.1 authentication
2013-04-25 22:07:01   I   msg:[UVOX2] 1269807297 Mime type
2013-04-25 22:07:01   I   msg:[UVOX2] 1269807297 Broadcast setup
2013-04-25 22:07:01   I   msg:[UVOX2] 1269807297 Negotiating buffer sizes
2013-04-25 22:07:01   I   msg:[UVOX2] 1269807297 Negotiated buffer size is 320KB
2013-04-25 22:07:01   I   msg:[UVOX2] 1269807297 Negotiating payload sizes
2013-04-25 22:07:01   I   msg:[UVOX2] 1269807297 Negotiated payload size is 16377
2013-04-25 22:07:01   I   msg:[UVOX2] 1269807297 Configuring ICY-NAME [NAME RADIO]
2013-04-25 22:07:02   I   msg:[UVOX2] 1269807297 Configuring ICY-GENRE [Gospel]
2013-04-25 22:07:02   I   msg:[UVOX2] 1269807297 Configuring ICY-URL [http://www.radio.com.br]
2013-04-25 22:07:02   I   msg:[UVOX2] 1269807297 Configuring ICY-PUB [1]
2013-04-25 22:07:02   I   msg:[UVOX2] 1269807297 Flush metadata
2013-04-25 22:07:02   I   msg:[UVOX2] 1269807297 Standby
2013-04-25 22:07:02   E   msg:[UVOX2] 1269807297 Standby failed because Stream in use

I wonder if solved your problem?

Thanks in advance

the error in this case is pretty clear - there is already a source connected on the stream which is attempting to be connected to. hence the "Stream in use" response back from the server.