I’m pretty sure the eac3_eae errors aren’t related to the eac3_mf errors.
It tries to play using eac3_mf first, and can’t. That’s pretty common, most Windows systems won’t have an EAC3 codec installed systemwide.
One possible solution would be to install EAC3/AC3 codecs so there was a system MediaFoundation decoder available. There are some links in the forum, I’ll look in a second.
Edit: Here, try this. There’s a link to current LAVFilters in this thread.
Plex Media Player 3 (Windows 7) does not play/decode EAC3 5.1 or TrueHD 7.1
In your log, it falls back to trying to play using the eac3_eae codec, which has different errors.
That said, I agree. Somebody else who can say “do this” is obviously what you need. 
