Attempt to get length of a Instance value?

I just got this error and I checked if their are typos and their are none, I don't know what I did wrong. I need help, thanks.

local owner = {"TheCryptic_Dude"}

game.Players.PlayerAdded:Connect(function(player)
    player.CharacterAdded:Connect(function(char)
        for i = 1, #player do
            if owner[i] == player.Name then
                local trail = game.ServerStorage.Trail:Clone()
                trail.Parent = char.Head
                local attachment0 = Instance.new("Attachment",char.Head)
                attachment0.Name = "TrailAttachment0"
                local attachment1 = Instance.new("Attachment",char.HumanoidRootPart)
                attachment1.Name = "TrailAttachment1"
                trail.Attachment0 = attachment0
                trail.Attachment1 = attachment1

            end
        end
    end)
end)