Video transcoding not working on ubuntu

[Former user]

I was trying to transcode a divx file, I'm using the provided transcode script file, also using avconv executable linked to ffmpeg for compatibility

Permesso negato is "Permission denied"

[2015/01/03 16:26:53] minidlna.c:1107: warn: HTTP listening on port 8200 [2015/01/03 16:28:00] dlnameta.c:295: warn: Opening pipe:11 [2015/01/03 16:28:00] transcode.c:69: error: Exec failed (Permesso negato) [2015/01/03 16:28:00] dlnameta.c:302: warn: Opening pipe:11 failed! [Invalid data found when processing input] [2015/01/03 16:28:00] upnphttp.c:2028: error: Cannot obtain metadata. [2015/01/03 16:28:00] transcode.c:69: error: Exec failed (Permesso negato) [2015/01/03 16:28:01] transcode.c:69: error: Exec failed (Permesso negato) [2015/01/03 16:28:01] transcode.c:69: error: Exec failed (Permesso negato) [2015/01/03 16:28:01] transcode.c:69: error: Exec failed (Permesso negato) [2015/01/03 16:28:02] transcode.c:69: error: Exec failed (Permesso negato)