Error data/script/startup.lua:47: attempt to index field '?'(a nil value)
Error loading script: bla.lua
...
if(key == 105) then
for i = 0, 20 do
body_info = get_body_info (sel_player, i)
set_body_pos(sel_player, i, body_info.pos.x, body_info.pos.y - 0.1, body_info.pos.z)
end
...