Player Misinterpreted for a part when it's being told to another script?

Hi Everyone!

I was making this code for my game of tag, which attempts to detect a person in-game who reset, to respawn them back into the map. I use this code below to fire a message to the client:

for i = 1, #playersinround do
		player = playersinround[i]
		print(player) -- prints "Git_Good445"
		print(playersinround[1]) -- prints "Git_Good445"
		game.ReplicatedStorage.MapSpawns:FireClient(player, MapSpawns, playersinround)
	end

(playersinround is a table containing the players of the people who are in the round, and its important to note that the containments of the MapSpawns table are regular parts)

Then, i use this code below to fire a message to a different script than the one before.

game.ReplicatedStorage.MapSpawns.OnClientEvent:Connect(function(MapSpawns, playersinround)
	print(playersinround[1]) -- prints "Git_Good445"
	game.ReplicatedStorage.MapSpawns:FireServer(MapSpawns, playersinround)
end)

Finnaly, the message goes to this code in a different server script, that the 1st one.

CurrentStatus = game.ReplicatedStorage.CurrentStatus

game.ReplicatedStorage.MapSpawns.OnServerEvent:Connect(function(mapspawns, PIR)
	MapSpawns = mapspawns
	playersinround = PIR
	print(playersinround[1].Name) -- prints "Part"
end)


game:GetService("Players").PlayerAdded:Connect(function(plr)
	plr.CharacterAdded:Connect(function(character)
		character:WaitForChild("Humanoid").Died:Connect(function()
			print(plr.Name .. " has died!") -- prints
			plr.CharacterAdded:Connect(function()
				print(plr.Name .. " has respawned") -- prints
				if CurrentStatus.Value == "Round" then
					print("Round In Progress") -- prints
					print(playersinround[1].Name) -- prints "Part"
					print(#playersinround) -- prints "9", another problem
					for i = 1, #playersinround do
						print("Is " .. plr.Name .. " in the round?")
						local playerName = playersinround[i].Name
						print("Person in round is " .. playerName) -- prints "Person in round is Part"
						if playerName == character.Name then
							print(plr.Name .. " is in the round") -- doesnt print
							if character:FindFirstChild("HumanoidRootPart") then
								print("HumanoidRootPart Found") -- doesnt print
								local spawnNumber = math.random(1, #MapSpawns)
								character.HumanoidRootPart.CFrame = MapSpawns[spawnNumber].CFrame + Vector3.new(0,7,0)
							end
						end
					end
				end
			end)
		end)
	end)
end)

For some reason, when it gets to the other server script, the player is misinterpreted for a regular part. Why is it doing that?

Any help is appreciated :)