"Attempt to index local Player (a nil value)" while it's not nil?

Hello, I made a script opening a door if the player touching it has a certain rank in a group, which works, but the part getting a player from character does not seem to work (after the rank detection, the script continue but I've choose not to include it). Here, hit is the character touching the door.

 function Move(Hit)
    local Character = Hit.Parent
    local Player = game.Players:GetPlayerFromCharacter(Character)
    if Player == nil then
        print("Nil.")
    end 
    print("Door " .. script.Parent.Name .. " detected player " .. Player.Name .. ", checking rank.")
    if Player:GetRankInGroup(4274321) >= 251 and Player:IsInGroup(4274321) then

The output is this:

Nil.
  10:23:49.829 - Workspace.GroupLightDoor1.Script:21: attempt to index local 'Player' (a nil value)
10:23:49.830 - Stack Begin
10:23:49.830 - Script 'Workspace.GroupLightDoor1.Script', Line 21
10:23:49.830 - Stack End
  Door GroupLightDoor1 detected player CreatorMan2006, checking rank.

When I play the game in studio, and walks to the door, it opens, but errors "attempt to index local 'Player' (a nil value)". From what I know, nil is something that does not exist. If the player was nil, the door shouldn't be able to open since it could not detect the player's rank. This error does not ruin the game, but each time the door opens, it throws the error, and I don't know how to get rid of it.