This script works in ROBLOX Studio, but not in actual in-game form. Just wondering if there really is a problem with the script, or if it's just some plugin I own that's ruining it in some way.

Local Script (StarterGui>ScreenGui)

local UserInputService = game:GetService("UserInputService")
local Player = game.Players.LocalPlayer
local Character = Player.Character
local isinrangeof = nil
local ischatting = false
local line = 1
local istalking = false
local dialogues = nil

local function onInputBegan(input,gameProcessed)
	if input.UserInputType == Enum.UserInputType.Keyboard then
		local keyPressed = input.KeyCode
		if keyPressed == Enum.KeyCode.E then
			if isinrangeof ~= nil and not istalking then
				if ischatting == false then
					line = 1
					ischatting = true
					dialogues = require(isinrangeof.Lines)
					Character.Humanoid.WalkSpeed = 0
					script.Parent.DialogueHolder.Dialogue.Text = ""
					script.Parent.DialogueHolder:TweenPosition(UDim2.new(.5,0,.875,0),Enum.EasingDirection.Out,Enum.EasingStyle.Back,.5,true)
					wait(.5)
					local CurLine = dialogues[line]
					istalking = true
					for i = 1,#CurLine[1] do
						script.Parent.DialogueHolder.Dialogue.Text = string.sub(CurLine[1],0,i)
						wait(CurLine[2])
					end
					if CurLine[3] then
						CurLine[3]()
					end
					istalking = false
					line = line +1
				else
					local CurLine = dialogues[line]
					if line > #dialogues then
						script.Parent.DialogueHolder:TweenPosition(UDim2.new(.5,0,1.5,0),Enum.EasingDirection.Out,Enum.EasingStyle.Back,.5,true)
						Character.Humanoid.WalkSpeed = 16
						dialogues = nil
						ischatting = false
					else
						local CurLine = dialogues[line]
						istalking = true
						for i = 1,#CurLine[1] do
							script.Parent.DialogueHolder.Dialogue.Text = string.sub(CurLine[1],0,i)
							wait(CurLine[2])
						end
						if CurLine[3] then
							CurLine[3]()
						end
						istalking = false
						line = line +1
					end
				end
			end
		end
	end
end

UserInputService.InputBegan:connect(onInputBegan)

while true do
	wait()
	if ischatting == false then
		isinrangeof = nil
		for i,v in pairs(workspace.NPCS:GetChildren()) do
			if(Character.HumanoidRootPart.Position-v.HumanoidRootPart.Position).magnitude <= 5 then
				isinrangeof = v
			end
		end
	end
end

Module Script (Workspace>Folder>Model)

local NPCLines = {
	{"Text",.05,nil},

	
	}

return NPCLines
Anonymous