Why does my Door script stop working without any apparent reason?

So, I have this Server Script and a folder called Doors in Workspace. The Doors folder contains two folders, one called ExitDoors and another one called InsideDoors, both folders contain multiple models of doors, all of the models has a PrimaryPart assigned and all of its parts' CanCollide set to false. So it'd be: workspace.Doors.ExitDoors/InsideDoors I also have a Neighbor team and Civilians team (more on that in a sec).

I've attempted to make Civilians team be able to open all doors with no problem, and Neighbor team be unable to open doors that are parented to ExitDoors.

For some reason, they eventually tend to just don't work anymore, no errors, Doors are just frozen, inactive...I'm really confused...

This is the script I've made:

local GeneralFunctions = require(workspace.GeneralFunctions) --Don't mind this.

local DefaultCFrames = {}
for _, doorsection in ipairs(script.Parent.Doors:GetChildren()) do
	for _, door in ipairs(doorsection:GetChildren()) do
		DefaultCFrames[door] = door.PrimaryPart.CFrame
	end
end

local OpenDoorRange = 7
local SoundDebounce = {}

while true do
	wait()
	for _, doorsection in ipairs(script.Parent.Doors:GetChildren()) do
		for _, door in ipairs(doorsection:GetChildren()) do
			if DefaultCFrames[door] then
				
				local Distance, Player = math.huge
				
				-- Gets nearest player, you can skip this up to the for loop's end.
				for _, plr in ipairs(game:GetService("Players"):GetPlayers()) do
					if plr.Character and plr.Character:WaitForChild("Humanoid").Health > 0 then
						local Distance_Alt = (
							plr.Character:WaitForChild("HumanoidRootPart").Position - 
							(DefaultCFrames[door].Position - Vector3.new(0, door.PrimaryPart.Size.X / 2, 0) + Vector3.new(0, 2.31, 0))
						).Magnitude
						if Distance > Distance_Alt then Distance = Distance_Alt Player = plr end
					end
				end
				
				local Sound
				if Player ~= nil then
					if (Player.Team == game:GetService("Teams").Civilians) or (Player.Team == game:GetService("Teams").Neighbor and door.Parent ~= script.Parent.Doors.ExitDoors) then
						if Distance <= OpenDoorRange then
							door:SetPrimaryPartCFrame(DefaultCFrames[door] * CFrame.Angles(math.rad(90), 0, 0))
							if not SoundDebounce[door] then Sound = script.DoorOpen:Clone() SoundDebounce[door] = true end
						else
							door:SetPrimaryPartCFrame(DefaultCFrames[door])
							if SoundDebounce[door] then Sound = script.DoorClose:Clone() SoundDebounce[door] = false end
						end
					end
				end
				if Sound then
					Sound.Parent = door.PrimaryPart
					Sound.PlaybackSpeed = Random.new():NextNumber(0.9, 1.1)
					Sound.PlayOnRemove = true Sound:Destroy()
				end
			end
		end
	end
end

I really need help with this...Thanks for reading this.