Report any bugs you find on the iBot conversor here.
Don't forget to post the Lua script you were trying to convert. Also, to improve readability post your script around [lua][/lua] tags.
i.e.:
[lua]if $hppc < 50 then
cast('exura')
end[/lua]
becomes:
if $hppc < 50 then
cast('exura')
end