SetSignLines does not work

[nixi]

Ahele, se stim smiř?

Hus, jeď do Kosntice jim to vysvjetlit

[Dredd]

In API: SetSignLines(BlockX,BlockY,BlockZ,Line1,Line2,Line3,Line4,Player)
if isset "Player" then i get error "to many arguments".
if there is no "player", the function works fine, but my another function not work...

if i place sign with "[stats]" in first line, all work, but i klick on sign, function "OnSignUpdate" not getting "Player" and send error.
if i added "Player" in function "SetSignLines", i get error "to many arguments" in function "SetSignLines"...
How do?

my code:

Code:

function OnSignUpdate(World, BlockX, BlockY, BlockZ, Line1, Line2, Line3, Line4, Player)
     if(string.find(string.lower(Line1),'%[stats%]') ~= nil)then
          local Statistics = Player:GetStatistics()
          local mobKills = Statistics.Custom[CustomStatistic.MobKills]
          return false, Line1, Player:GetName(),  mobKills , Line4
     end
end
function OnPlayerRightClick(Player, BlockX, BlockY, BlockZ, BlockFace, CursorX, CursorY, CursorZ)
     local World = Player:GetWorld()
     if(World:GetBlock(Vector3i(BlockX, BlockY, BlockZ)) == E_BLOCK_WALLSIGN)then
          local IsValid, Line1, Line2, Line3, Line4 = World:GetSignLines(BlockX, BlockY, BlockZ)
          if(string.find(string.lower(Line1),'%[stats%]') ~= nil)then
               local Statistics = Player:GetStatistics()
               local mobKills = Statistics.Custom[CustomStatistic.MobKills]
               World:SetSignLines(BlockX, BlockY, BlockZ, Line1, Line2, mobKills, Line4)
          end
     end
     return false
end