Get player from character not working?

Ok so I want to get the player from all of the characters in this folder so I can access their backpack and a custom inventory folder.

Here is my code:

for i = 1, #players do
                        playerthing = players[i]

                    actualplayer =  playerthing:GetPlayerFromCharacter()

                        playerweapons = actualplayer.Inventory:GetChildren()

                        playerweapons.Parent = actualplayer.Backpack

here is the error I get GetPlayerFromCharacter is not a valid member of Model "Workspace.PlayersMap.epicnmac"

Full Code:

while true do
    wait (0.5)

    if game.ServerStorage.Map.Players.Value == 1 then

        for i = 19,1,-1 do game.ServerStorage.Map.Time.Value = i wait (1) end

    if game.ServerStorage.Map.Time.Value == 0 then
            print "LoadedMap"

            local themap = game.ServerStorage.Map.Build:Clone()

            themap.Parent = game.Workspace      

            tpposy = math.random(0,100000)

            tpposx = math.random(0,100000)

            tpposz = math.random(0,100000)

            themap.Part.Position = Vector3.new (tpposy,tpposx,tpposz)

            print (tpposx)

            wait (1)

        local players = game.Workspace.PlayersMap:GetChildren()

            for i = 1, #players do
                playerthing = players[i]
                rootpart = players[i].HumanoidRootPart
                playerparent = players[i].Parent

            wait (0.5)
            rootpart.CFrame = CFrame.new(tpposy,tpposx,tpposz)

                rootpart.CFrame = CFrame.new(tpposy,tpposx,tpposz)

                rootpart.CFrame = CFrame.new(tpposy,tpposx,tpposz)

                rootpart.CFrame = CFrame.new(tpposy,tpposx,tpposz)

                wait (1)





                playerparent = game.Workspace



                print "Parent Changed"

            game.ServerStorage.Map.Players.Value = 0



                    game.ServerStorage.Map.Closed.Value = true




                actualplayer = game.Players:GetPlayerFromCharacter(playerthing)

                        playerweapons = actualplayer.Inventory:GetChildren()

                        playerweapons.Parent = actualplayer.Backpack






                  end
              end
          end
      end