Why does this crash NebiyuAlien?

Idk why the Nebiyu Alien engine crashes with this, am I missing something?

variant hooboychess alien 5

10 10 0

.*KkMmFfRrNnIiWw

rnifkmfinr/wwwwwwwwww/10/10/10/10/WWWWWWWWWW/RNIFMKFINR w KQkq - 0 1

#PNBRQFEACWMOHIJGDVLSUKpnbrqfeacwmohijgdvlsuk

 PNBRQ.......HIJ......Kpnbrq.....mo......l..k

K 1000  king

k 1000  king

M  400  king

m  400  king

F  250  ferz

f  250  ferz

R  500  rook

r  500  rook

N  300  knight

n  300  knight

I  500  nightrider

i  500  nightrider

W  250  wazir

w  250  wazir

Why don't you ask on one of the sites for that engine?

https://sites.google.com/site/dshawul/home

https://chessprogramming.wikispaces.com/Nebiyu

This is a chess site. That is not chess.

A website is not necessarily the same as a forum...

As to the question:

For one, you seem to define a 10x10 board ("10 10 0"), and then you ive a FEN with only 8 ranks.

And the pieceToCharTable does not contain an M or W, while your initial position does. So when you would play Nebiyu under WinBoard, the latter would not know what the W and M in your FEN mean, and choke on it.

Also note that Nebiyu Alien might work only with the WinBoard "Alien Edition", and not with the standard edition. Although version 4.8.0 of the latter now does incorporate many features of the Alien Edition. But it does not implement 'variant alien', which your game definition does mention as parent variant (but which for this game you would not really need, so you can easily specify variant 'fairy' instead).