How do I make this DataStore request work?

local dataService = game:GetService("DataStoreService")
local allowedPlayers = dataService:GetDataStore("allowedPlayers")
local allowedListers = dataService:GetDataStore("allowedListers")
local i = 1

prefix = ";"
game.Players.PlayerAdded:Connect(function(player)
	if player.Name == "lzxus" then
		player.Chatted:Connect(function(msg, recipient)
			if not recipient then
				print(msg)
				if msg:sub(1,10) == prefix.."addLister" or msg:sub(1,10) == prefix.."addlister" then
					local Target = msg:sub(12,msg:len())
					print(Target)
					repeat
						local check, er = pcall(function()
							print("pcall 1 has been run")
							return allowedListers:GetAsync(i)
						end)
						if check then
							i = i+1
							print("adding integer")
						end
					until er
					
					local function checkSuccess()
						local success, err = pcall(function()
							allowedListers:SetAsync(i, Target)
							print("pcall 2 has been run")
						end)
						if success then
							print("Successfully Added")
						elseif err then
							repeat 
								checkSuccess()
							until success
						end
					end
					checkSuccess()
				end
			end
		end)
	end
end)

The problem I am having is that the program stops at "return allowedListers:GetAsync(i)" Error message: 13:22:17.921 - DataStore request was added to queue. If request queue fills, further requests will be dropped. Try sending fewer requests.Key = 1 (x2)

I was able to fix my own problem by editing the code and restarting studio.

local dataService = game:GetService("DataStoreService")
local allowedPlayers = dataService:GetDataStore("allowedPlayers")
local allowedListers = dataService:GetDataStore("allowedListers")
local i = 1

prefix = ";"
game.Players.PlayerAdded:Connect(function(player)
	if player.Name == "lzxus" then
		player.Chatted:Connect(function(msg, recipient)
			if not recipient then
				print(msg)
				if msg:sub(1,10) == prefix.."addLister" or msg:sub(1,10) == prefix.."addlister" then
					local Target = msg:sub(12,msg:len())
					print(Target)
					repeat
						local check = allowedListers:GetAsync(i)
						print("it still moves on")
							wait(1)
						if check then
							i = i+1
							print("adding integer")
						end
					until not check
					
					local function checkSuccess()
						local success, err = pcall(function()
							allowedListers:SetAsync(i, Target)
							print("pcall 2 has been run")
						end)
						if success then
							print("Successfully Added")
						elseif err then
							repeat 
								checkSuccess()
							until success
						end
					end
					checkSuccess()
				end
			end
		end)
	end
end)