HttpError: DnsResolve

[DecentAgent (Nex)]

I’ve encountered an issue where my domain randomly stopped working after getting a error message that I am somehow familar with called HttpError: DnsResolve. I’ve looked up this issue before but I still haven’t figured out what the problem is. My domain was working before and I’ve been able to establish a connection previously.

Here’s my RankManager ModuleScript:

local Server = {}

local HttpService = game:GetService("HttpService")

local Configs = require(game:GetService("ServerStorage").Configs.Config)

local function Request(Function, RequestBody)

	--Before sending the request, add our auth_key to the body
	RequestBody["auth_key"] = Configs.Auth

	local response = HttpService:RequestAsync(
		{
			-- The website to send the request to. Function is the extended part of the URL for specific functions.
			-- In this case, Function = 'GroupShout'
			-- Example: 
			--	"Configs.BaseUrl..Function" would be equal to: http://test-app.glitch.me/GroupShout

			Url = Configs.BaseUrl..Function, 

			-- The request method (all of ours will be POST)
			Method = "POST",

			-- We are sending JSON data in the body
			Headers = {
				["Content-Type"] = "application/json"
			},
			-- The body of the request containing the parameters for the request
			Body = HttpService:JSONEncode(RequestBody)
		}
	)

	if response.Success then
		print("Status code:", response.StatusCode, response.Body)
		print("Response body:\n", response.Body)

		return response.Body
	else
		print("The request failed:", response.StatusCode, response.Body)
		return response.Body
	end
end

Server.Promote = function(GroupId, UserId)
	assert(typeof(GroupId) == "number", "Error: GroupId must be an integer") -- Throw error if GroupId is not an integer
	assert(typeof(UserId) == "number", "Error: UserId must be an integer") -- Throw error if UserId is not an integer

	local Body = {
		Group = GroupId;
		Target = UserId;
	}

	-- pcall the function 'Request', with arguments 'Promote' and Body
	local Success, Result = pcall(function()
		return Request('Promote', Body)
	end)

	print(Result)
end

Server.Demote = function(GroupId, UserId)
	assert(typeof(GroupId) == "number", "Error: GroupId must be an integer") -- Throw error if GroupId is not an integer
	assert(typeof(UserId) == "number", "Error: UserId must be an integer") -- Throw error if UserId is not an integer

	local Body = {
		Group = GroupId;
		Target = UserId;
	}

	local Success, Result = pcall(function()
		return Request('Demote', Body)
	end)

	print(Result)
end

Server.SetRank = function(GroupId, UserId, RankId)
	assert(typeof(GroupId) == "number", "Error: GroupId must be an integer") -- Throw error if GroupId is not an integer
	assert(typeof(UserId) == "number", "Error: UserId must be an integer") -- Throw error if UserId is not an integer
	assert(typeof(RankId) == "number", "Error: RankId must be an integer") -- Throw error if RankId is not an integer

	local Body = {
		Group = GroupId;
		Target = UserId;
		Rank = RankId;
	}

	local Success, Result = pcall(function()
		return Request('SetRank', Body)
	end)

	print(Result)
end

Server.HandleJoinRequest = function(GroupId, PlayerUsername, Boolean)
	assert(typeof(GroupId) == "number", "Error: GroupId must be an integer") -- Throw error if GroupId is not an integer
	assert(typeof(PlayerUsername) == "string", "Error: PlayerUsername must be a string") -- Throw error if PlayerUsername is not a string
	assert(typeof(Boolean) == "boolean", "Error: Boolean must be a boolean value") -- Throw error if Boolean is not a boolean value

	local Body = {
		Group = GroupId;
		Username = PlayerUsername;
		Accept = Boolean; -- true or false
	}

	local Success, Result = pcall(function()
		return Request('HandleJoinRequest', Body)
	end)

	print(Result)
end

Server.GroupShout = function(GroupId, ShoutMessage)
	assert(typeof(GroupId) == "number", "Error: GroupId must be an integer") -- Throw error if GroupId is not an integer
	assert(typeof(ShoutMessage) == "string", "Error: ShoutMessage must be a string") -- Throw error if ShoutMessage is not a string

	local Body = {
		Group = GroupId;
		Message = ShoutMessage;
	}

	local Success, Result = pcall(function()
		return Request('GroupShout', Body)
	end)

	print(Result)
end

return Server

---

I have no idea why this problem just appeared out of the blue. Both my JavaScript code and configuration are flawless.

Configuration Script: (some parts censored)

--// The Configuration for Nx_ev's API
--// Misconfiguration may lead to the code not properly working

return {
	["BaseUrl"] = "http://--------.-----" .. "/"; -- The API url
	["Auth"] = "-------------------"; -- The auth key Nx_ev provided you with
	["Group"] = ------; -- The group ID
	["MinimumRank"] = --; -- The minimum rank to be able to use the API
}

My script (not full)

ReplicatedStorage:WaitForChild("Remotes"):WaitForChild("Events").ApplicationFinished.OnServerEvent:Connect(function(Player)
	RankManager.SetRank(GroupID, Player.UserId, 6)
	while true do
		task.wait()
		if Player:GetRankInGroup(32316058) == 6 then
			Player:Kick("You've been ranked.")
			break
		end
	end
end)

---

Failed Solutions

All of these solutions below have been tried and failed as I could not find a problem.

1. DNS server issues: The DNS server being used by your computer might be down or slow, resulting in failed DNS resolution.
2. Network connectivity issues: There might be network connectivity issues on your computer, preventing it from accessing the internet.
3. URL or domain name issues: There might be an error in the URL or domain name you’re trying to access.
4. Server issues: The server might be down or unreachable.