How do I filter the reason text on this ban GUI?

Help and Feedback Scripting Support
#1

I have a ban GUI and I want to filter the reason text and I tried the Roblox tutorial on filtering but it just broke my entire system.
Script in ServerScriptService:

local admins = {1822194589, 883317228} -- Add your id here
local ds = game:GetService("DataStoreService"):GetDataStore("Bans/Unbans")

game.Players.PlayerAdded:Connect(function(plr)

	local data = ds:GetAsync(plr.UserId)

	local IsAdmin = false
	for i,v in pairs(admins) do
		if v == plr.UserId then
			IsAdmin = true
			local clone = script.BanGui:Clone()
			clone.Parent = plr.PlayerGui
		end
	end

	if data then
		if IsAdmin == false then
			if data[1] == true then
				plr:Kick("You have been banned from this experience. Reason: "..data[2])
			end
		end
	end
end)

game.ReplicatedStorage:WaitForChild("Ban/Unban").OnServerEvent:Connect(function(plr, plrtoban, reason, ban)
	if ban == "Ban" then
		for i,v in pairs(admins) do
			if plr.UserId == v then
				if game.Players:FindFirstChild(plrtoban) then
					if game.Players[plrtoban].UserId ~= plr.UserId then
						print(plrtoban.." has been banned!")
							game.Players[plrtoban]:Kick("You have been banned from this experience. Reason: "..reason)
							ds:SetAsync(game.Players[plrtoban].UserId, {true, reason})
					else print("This player is an admin!")
					end
				else
					local players = game:GetService("Players")
					local Id = players:GetUserIdFromNameAsync(plrtoban)
					if Id ~= plr.UserId then
						ds:SetAsync(Id, {true, reason})
						print(plrtoban.." has been banned!")
					end
				end
			end
		end
	elseif ban == "Unban" then
		local players = game:GetService("Players")
		local Id = players:GetUserIdFromNameAsync(plrtoban)
		ds:RemoveAsync(Id)
		print(plrtoban.." has been unbanned!")
		
		
	end
end)