failed gate script

function gate()
    x1,y1,z1 = getElementPosition (object (wrongs-gate)(1))
    x2,y2,z2 = x1+5,y1+5,z1+5
    x4,y4,z4 = getElementPosition source
    if  (x4<=x2) and (y4<=y2) and (z4<=z2) then
    then
        z3=z1+3
        MoveObject (object (wrongs-gate)(1), x1,y1,z3)
        sleep(5)
        MoveObject (object (wrongs-gate)(1), x1,y1,z1)
end

function spawn()
    TeamLess=createTeam(TeamLess,0,300,0)
    spawnPlayer(source,2791,-2456,14)
    fadeCamera(source,true)
    setCameraTarget(source,source)
    outputChatBox("NanoBob's testserver", source)
    outputChatBox("Type /login [PASSWORD] to login or /register[PASSWORD] to register")
    giveWeapon(source,31,4000)
    setPlayerTeam(source,TeamLess)
end
addEventHandler("onPlayerJoin", getRootElement(), spawn)
addEventHandler("OpenGate",gate)