what to do if this is being shown in output? attempt to index nil with 'LoadCharacter'

i have a made a script based on round system there is a problem shown in output it is not being showed in script Analysis. my script ends without being finished. please help me.

I am working on a Round System. i don't know much in scripting just running using Youtube. if there is a expert Person Who Know Scripting then can contact me let me know your user if you know scripting.

Script:

local s =script.Stat
local vals = game.ReplicatedStorage.vals
t = 0
while true do
	t = 15
	repeat
		t = t-1
		s.Value = "Intermission.. "..t
		wait(1)
	until t == 0
	s.Value = "Game Starting"
	wait(2)
	local mapselect = game.ReplicatedStorage.Games:GetChildren()
	local choose = math.random(1,#mapselect)
	curnum = 0
	for i =1,#mapselect do
		curnum = curnum +1
		if curnum == choose then
			mapselect[i]:Clone().Parent = workspace
			curnum = mapselect[i].Name
			s.Value = "We'll Be Playing "..mapselect[i].name
		end
	end
	wait(3)
	local plrs = game.Players:GetChildren()
	for i =1,#plrs do
		local num = math.random(1,32)
		plrs[i].Character.Head.CFrame = CFrame.new(workspace.Teleports["Part"..num].Position)
		plrs[i].Character.Parent = workspace.Ingame
	end
	t=100
	repeat
		t = t-1
		s.Value = t.." Seconds Left"
		wait(1)
	until t ==0 or vals.Winner.Value ~= ""
	if vals.Winner.Value ~= "" then
		s.Value = vals.Winner.Value.. "Has Won!"
		vals.Winner.Value = ""
	else
		s.Value = "No One Has Won!"
	end
	wait(3)
	local ingame = workspace.Ingame:GetChildren()
	for i =1,#ingame do
		local plr = game.Players:GetPlayerFromCharacter(ingame[i])
		plr:LoadCharacter()
		workspace[curnum]:Destroy()	
	end
end		

the proble according to output is in line 47

Simply check if the player exists, and their character:

if plr and plr.Character then
   -- load character here
end

for i =1,#ingame do
if game.Players:findFirstChild(ingame[i].Name) then
...
end