zombieEngine\gamerns\levels\default.n2
line 50
nthis:addentitylayer(0, [[default]])
with 2 arg, but
nLevel::AddEntityLayer(int layerId, const char * layerName, bool isLocked, const char * password) have 4 args
it must be like something like this.
nthis:addentitylayer(0, [[default]], false, [[]])