Saving list of banned users to a table?

so I'm having issues saving bans and such using a datastore I was wondering if anyone could help me I'm kinda stuck at the end

local DataStore = game:GetService("DataStoreService"):GetDataStore("BannedList")
local bans = {""}
local admins = {"admin"}

local victim
function tableContains(t, value)
    for _, v in pairs(t) do
        if v == value then 
            return true
        end
    end
    return false
end

function findPlayer(name)
    for _, player in ipairs(game.Players:GetPlayers()) do
        if player.Name:lower() == name:lower() then
            return player
        end
    end
end

game:GetService("Players").PlayerAdded:connect(function(player)
    player.Chatted:connect(function(msg)
if msg:sub(1, 4) == "ban/" and tableContains(admins, player.Name) then
	victim = findPlayer(msg:sub(5))
		if victim then
			end
		end
    end)
    

Whenever you refer to a value with TableName[Value], that value in between the brackets is the index of the table. For instance, if I have a table of 4 values:

Table = {"A","B","C","D"}
print(Table[4]) -- Prints D

Instead of victim.Name, you have to use a number in that instance.

If you are just trying to insert a new value into the table, it's simpler than you think

table.insert(Table,victim.Name) -- You can also pass a 3rd argument if you want to insert it in a specific index of the table.