[LUA] ToScreen() broken???

I have been puzzled by this problem I’ve been having while making this ESP/Wallhack. everything else works, but when I checked the return value for the ToScreen() of Vector(0,0,0), It always returned THIS…
3162802176
17721090048

I used this code to get the values.
local Pos = (Vector(0,0,0)):ToScreen()
print(Pos.x)-- (returns 3162802176)
print(Pos.y) – (returns 17721090048)

ANY IDEAS?
and FYI, I AM running the latest gmod 13.

ESP/Wallhack?

Good luck with getting help here