Can't read certain type of audio files

[ima2gine]

I've successfully installed Minimserver on my QNAP TS212 (with 2x 2T in Raid 1 format) and using Lumin as the AV control. Everything is perfrect execept I just can't read the normal 44.1/16 WAV files and MP3 even after repeated restart of Minimserver (or the NAS). The other types of file include AIFF, ALAC, DSF, AAC are all fine.

Wonder what should I do to deal with this situation.

Thanks in advance.