attachelement with sourcePlayer

[adamb]

for k, v in ipairs(players) do 
    circlearea2 = createColCircle(0, 0, 5) 
    if circlearea2 then 
        attachElements(circlearea2, sourcePlayer) 
    end 
    bindKey(v, "i", "down", "checkdriver") 
end 

error: expected element, got nil

What did i do wrong?

[IIYAMA]

for k, player in ipairs(getElementsByType("player")) do 
        local circlearea = createColCircle(0, 0, 5) 
        if circlearea then 
            attachElements(circlearea, player) 
        end 
        bindKey(player, "i", "down", "checkdriver") 
    end