Characters appearing as nil? (Local Script) [FE on]

local plrchar = game.Players.LocalPlayer.Character
    local players = game.Players:GetChildren()

local function findplayers()


for i,v in pairs(players)do


wait(1)
local pc = game.Workspace:FindFirstChild(v.Name)
if v.TempPlayerStatsModule.IsBeast.Value == true then
local atta = Instance.new("Attachment",plrchar.Torso)
local atta2 = Instance.new("Attachment",pc.Torso)
atta2.Parent = pc.Torso
local beam = Instance.new("Beam",plrchar.Torso)
beam.FaceCamera = true
beam.Attachment0 = atta
beam.Attachment1 = atta2
beam.Color = ColorSequence.new(Color3.fromRGB(255,0,0))
    local billboard = Instance.new("BillboardGui",beam)
billboard.Size = UDim2.new (0,200,0,50)
billboard.ExtentsOffset = Vector3.new(0,2.5,0)
billboard.AlwaysOnTop = true
billboard.Adornee = pc.Head
wait(.1)
    local textbox = Instance.new ("TextBox",billboard)
    textbox.Size = UDim2.new (0, 200,0, 50)
    textbox.Name = "textbox"
    wait(.1)
    textbox.TextColor3 = Color3.fromRGB(255,0,0)
    textbox.TextSize = 20
    textbox.BackgroundTransparency = 1
textbox.Text = "It"

elseif v.TempPlayerStatsModule.IsBeast.Value == false then 

local atta = Instance.new("Attachment",plrchar.Torso)
local atta2 = Instance.new("Attachment")
atta2.Parent = pc.Torso
local beam = Instance.new("Beam",plrchar.Torso)
beam.FaceCamera = true
beam.Attachment0 = atta
beam.Attachment1 = atta2
beam.Color = ColorSequence.new(Color3.fromRGB(0,255,0))
    local billboard = Instance.new("BillboardGui",beam)
billboard.Size = UDim2.new (0,200,0,50)
billboard.ExtentsOffset = Vector3.new(0,2.5,0)
billboard.AlwaysOnTop = true
billboard.Adornee = pc.Head
wait(.1)
    local textbox = Instance.new ("TextBox",billboard)
    textbox.Size = UDim2.new (0, 200,0, 50)
    textbox.Name = "textbox"
    wait(.1)
    textbox.TextColor3 = Color3.fromRGB(0,255,0)
    textbox.TextSize = 20
    textbox.BackgroundTransparency = 1
textbox.Text = "Other"

end
end
end

It says that pc (the players character) is nil about 10% of the time when creating the billboard gui. Why is this?

I have also tried v.Character for [pc]