NCF – Extended list of Neutral creatures.

indeed, the mod is missing the file
\MapObjects\_(AdvMapObjectLink)\Monsters\NCF\Creature_389.xdb

take it from the megapack

I don't want to search for creatures, if you want, you can do it yourself - here's a link to the list of creatures from that forum http://heroescommunity.com/viewthread.php3?TID=27275
but so much time has passed that many images have stopped displaying, and the links are dead... it's sad, I really loved browsing that forum back in 2013.