Problem with AAC audio streams

My XBMC client skips AAC files streaming from Serviio 1.2.1;
The XBMC log contains lines like:
The server runs on another machine on a local network.
Serviio runs on linux, so does the XBMC 12 client.
What might be wrong ?
The XBMC log contains lines like:
- Code:
12:43:58 T:140420007925632 ERROR: CAudioDecoder: Unable to Init Codec while loading file http://169.254.157.28:8895/resource/376/MEDIA_ITEM/AAC_ISO_320-0/ORIGINAL
12:43:58 T:140420007925632 WARNING: PAPlayer::QueueNextFileEx - Failed to create the decoder
12:43:58 T:140420007925632 ERROR: Playlist Player: skipping unplayable item: 0, path [upnp://4d1a872e-2ed4-311b-b0f1-721e326f3855/A_A%5eINI_66%5eART_43%5eA_29%5eS_376/]
The server runs on another machine on a local network.
Serviio runs on linux, so does the XBMC 12 client.
What might be wrong ?