why this is NextInteger Returning nill ?

Can someone help me out? a Random.NextInteger function is returning nill everytime i run it

the function returning the nill

local Tables = GetTablesFromAttackAnimation1(AttackFrameModule, (CanBackstab and AttackFrameModule.BackstabAnimation) and "BackstabAnimationTable" or RealType, AttackNumber)
                local Table = Tables[Random.new():NextInteger(1, #Tables)]
                print(Table)
                LastComboDelay = Table[3][2]

the function itself

local function GetTablesFromAttackAnimation1(AttackFrameModule, AttackType, Attack)
    local Tables = {}
    print(Attack)
    for _, v in pairs(AttackFrameModule[AttackType]) do
        if v.AttackType == Attack then
            print("oi2")
            table.insert(Tables, {v.Id, v.Speed,
                {v.AttackDelay, v.ComboDelay, v.HitboxTimes, v.RaycastHitboxInstances},
                {v.DashDelay, v.DashVelocity, v.DashLifeTime},
                {v.Hitbox.HitboxType, v.Hitbox.HitboxShape, v.Hitbox.HitboxSize, v.Hitbox.HitboxCFrame, v.Hitbox.MaxPartsInRegion}})
        end
    end

    return Tables
end

the table

{
            Id = "rbxassetid://9518474867", Speed = 1, AttackDelay = 0.6, ComboDelay = 0.6, HitboxTimes = {0, 0.5}, RaycastHitboxInstances = {{"Tool", "Handle"}}, DashDelay = 0, DashVelocity = 1, DashLifeTime = 2, AttackType = "1",

                Hitbox = {
                    HitboxType = "RaycastHitbox",
                    --RotatedRegion
                    HitboxShape = Enum.PartType.Block,
                    HitboxSize = Vector3.new(4, 4, 7),
                    HitboxCFrame = CFrame.new(0, 1, -2),
                    MaxPartsInRegion = 50,
                }
        },