Why dosen't my enemy follow nor move at all?

You spelled 'Player' wrong in the code 'function findPlaayer() for _...'. If that didn't work make sure it is unanchored and welded properly. If the problem was the typo, don't accept this answer as it was protectiveebob who said that first in the comments.

Let me know if it doesn't work, I got a couple other tricks I could try. Tip: you can format your post to display code by highlighting all the pasted code and pressing the little blue Lua button. And you had an extra "end". Use tabbing to keep track of them.

local torso = script.Parent.Torso
local h = script.Parent.Humanoid 
local spawnCF = script.Parent.Torso.CFrame

function findPlayer() for _,v in next, game.Players:GetPlayers() do
   if v.Character then
      local char = v.Character
      if char:FindFirstChild("Humanoid") and
char:FindFirstChild("Torso")then
         local ptorso = char.Torso
         if(ptorso.Position - torso.Position).magnitude <= 
            30 then return v
         end
      end
   end 
return nil
end 


while wait() do 
   local player = findPlayer()
   if player ~= nil then 
      h :MoveTo(player.Character.Torso.Position) 
   else
      h:MoveTo(spawnCF.p)
   end
end