Why does this one line stop the script from running properly?

Line 3, where I get the board ID, stops the script from working properly. It allows me to print throughout the script, but the functions itself won't work properly. No errors occur, and nothing happens for these custom admin commands.

local Players = game:GetService("Players")
local API = require(game:GetService("ServerScriptService"):WaitForChild("TrelloAPI"))
local BoardID = API:GetBoardID("622907324")


local Prefix = "%."
local Admins = {
    "AbstractBody"
}

local Commands = {"Kill","Stat","Kick"} 

local function IsAdmin(Player)
    for _,Admin in pairs(Admins) do
        if type(Admin) == "string" and string.lower(Admin) == string.lower(Player.Name) then
            return true
            elseif type(Admin) == "number" and Admin == Player.UserId then
            return true
        end
    end
    return false
end 

local function ParseMessage(Player,Message)
    local PrefixMatch = string.match(Message,"^"..Prefix)
    if PrefixMatch then
        local Message = string.gsub(Message,PrefixMatch,"",1)
        local Arguments = {}
        for Argument in string.gmatch(Message,"[^%s]+") do
            table.insert(Arguments,Argument)
        end

        for _,Command in pairs(Commands) do
                if string.lower(Arguments[1]) == string.lower(Command) then
                local PlayerInCommand = string.lower(Arguments[2])
                local PlayerCommand = string.lower(Arguments[1])

                -- Kill --
                if PlayerCommand == string.lower("Kill") then
                    for _,v in pairs(Players:GetChildren()) do
                        if string.match(string.lower(v.Name),"^"..PlayerInCommand) then
                            local Hum = v.Character:WaitForChild("Humanoid")
                            Hum:TakeDamage(Hum.MaxHealth)
                        end
                    end
                end
                --

                -- Change Stat --
                if PlayerCommand == string.lower("Stat") then
                    for _,v in pairs(Players:GetChildren()) do
                        if string.match(string.lower(v.Name),"^"..PlayerInCommand) then
                            if type[Arguments[4]] == "number" then
                            local NewStat = Arguments[4]
                            local StatChated = Arguments[3]
                                local Stat = string.lower(v:WaitForChild("leaderstats"):WaitForChild(string.lower(Arguments[3])))
                                    if Stat then
                                        Stat.Value = NewStat
                            end
                        end
                    end
                end
                --

                -- Kick Player --
                if PlayerInCommand == string.lower("Kick") then
                    for _,v in pairs(Players:GetChildren()) do
                        if string.match(string.lower(v.Name),"^"..PlayerInCommand) then
                            PlayerInCommand:Kick()
                        end
                    end
                end
                --

                end
            end
        end
    end
end

game.Players.PlayerAdded:Connect(function(Player)
    Player.Chatted:Connect(function(Message,Recipient)
        if not Recipient and IsAdmin(Player) then
            ParseMessage(Player,Message)
        end
    end)
end)