FOSS gamedev and creative worlds

I hardly speak English, so I wrote straight.
Why do I get this error during an attack zombie, oerki, sheep...? MOD Creatures

IMG
http://zapodaj.net/f9a88d2fb030b.png.html

which creatures mod do you have installed?

is it
viewtopic.php?f=11&t=9240

or
viewtopic.php?f=11&t=8638 ??

What other mods do you have installed??

I did it -->
Important: For the mod to work properly, you must first disable the default player script. To do that, open minetest_game/mods/default/init.lua and comment out the dofile line for player.lua.

Nothing has changed. The server crashes after the attack on the mob.

My mods:
http://zapodaj.net/f78bdb545716a.png.html