Add a wall sign and disable "monster"

[LeSanglier]

Hi,

I have a very strange error with lua code:

Code:

function addSign(Player)
    Player:GetWorld():SetBlock(Player:GetPosX() + 2, y + 1, Player:GetPosZ() + 1, E_BLOCK_WALLSIGN, E_META_CHEST_FACING_ZM)
    line1 = "Server01"
    line2 = "actif"
    line3 = "192.168.156.120"
    line4 = "Player"
    Player:GetWorld():SetSignLines(Player:GetPosX() + 2, y + 1, Player:GetPosZ() + 1, line1, line2, line3, line4)
    return true
end

I have a sign with but no lines.
I must deconnect/connect to the server to have all displayed lines.
Do you have a tip to display correctly the lines?
Thank you.