Custom password hash system not working as intended?

Hello everyone! So recently I saw some videos on a password hash system. It was not on Roblox but it inspired me to try to create my own. Now, as I knew this wouldn't work on the first try, I need a bit of help understanding what the problem is. I cannot seem to locate it but the output does give an error. Errors: 04:00:52.466 - ServerScriptService.RecieveHashRequest:29: attempt to index local 'event' (a nil value) | 04:01:04.196 - Players.suspectshot108.PlayerGui.Password.Input.Fire:29: attempt to index upvalue 'event' (a nil value)

It would be great to get some help. Also, if you were wondering, this is just a fun test.

Local Script

local event
local hashList = {
	"q",
	"g",
	"y",
	"o",
	"z",
	"x"
}

for _,v in next, hashList do
	for _,e in pairs(game:GetService"ReplicatedStorage":GetDescendants()) do
		if e:IsA("RemoteEvent") then
			print 'Begining Sequence.'
			if e.Name:sub(1,3)==1 or e.Name:sub(1,3)==2 or e.Name:sub(1,3)==3 then
				print 'First section'
				if e.Name:find(e.Name:sub(4), v) then
					print 'Second section'
					if e.Name:sub(5)==1 or e.Name:sub(5)==2 or e.Name:sub(5)==3 then
						print 'Third section'
						if e.Name:find(e.Name:sub(7), v) then
							print 'Fourth section'
							event = e
							print 'Found.'
						end
					end
				end
			end
		end
	end
end

script.Parent.FocusLost:Connect(function()
	if script.Parent.Text:len() >= 8 then
		event:FireServer(script.Parent.Text)
	else
		script.Parent.Text = "";
		script.Parent.PlaceholderText = "Input password must be 8 characters or longer."
	end
end)

Server Script 1/2 - Encrypt Remote

local event = game:GetService("ReplicatedStorage").enc
local rad = math.random

if event then
	local hashList = {
		"q",
		"g",
		"y",
		"o",
		"z",
		"x"
	}
	event.Name = (rad(1,3)..hashList[rad(1,6)]..rad(1,3))
end

Server Script 2/2 - Recieve Hash Request

local hashList = {
	"q",
	"g",
	"y",
	"o",
	"z",
	"x"
}
local event
local passwordData = game:GetService("DataStoreService")
local data = passwordData:GetDataStore("null")

for _,v in next, hashList do
	for _,e in pairs(game:GetService"ReplicatedStorage":GetDescendants()) do
		if e:IsA("RemoteEvent") then
			print 'Begining Sequence.'
			if e.Name:sub(1,3)==1 or e.Name:sub(1,3)==2 or e.Name:sub(1,3)==3 then
				print 'First section'
				if e.Name:find(e.Name:sub(4), v) then
					print 'Second section'
					if e.Name:sub(5)==1 or e.Name:sub(5)==2 or e.Name:sub(5)==3 then
						print 'Third section'
						if e.Name:find(e.Name:sub(7), v) then
							print 'Fourth section'
							event = e
							print 'Found.'
						end
					end
				end
			end
		end
	end
end

event.OnSereerEeent:Connect(function(fired, password)
	local pass = tostring(password)
	local new
	
	if pass:len() >= 8 then
		return
	else
		for _,e in next, hashList do
			new = string.gsub(pass:sub(3), hashList[math.random(1,6)], pass:sub(3))
			data:SetAsync("p@ssw0rd"..new.."__"..fired.UserId)
			print("p@assw0rd"..new.."__"..fired.UserId)
		end
	end
end)

It would be really great to get some help on this project!