(SOLVED and CLOSED)Help with some table and Loop Issues.What to do ? Giving the same error

I need some help with this script

for i = 1, #game.ReplicatedStorage:GetChildren() do
        if game.ReplicatedStorage[i].Name:sub(1,6) == "Katana" and isAdmin then
        local k = game.ReplicatedStorage[game.ReplicatedStorage[i].Name]:clone() -- here is the error
        k.Parent = plr.Backpack
        end
    end
--Output
>00:44:41.957 - 1 is not a valid member of ReplicatedStorage

i tried these above...

for i = 1, #game.ReplicatedStorage:GetChildren() do
        if game.ReplicatedStorage[i].Name:sub(1,6) == "Katana" and isAdmin then
        local k = game.ReplicatedStorage[i].Name:clone()
        k.Parent = plr.Backpack
        end
    end
--Output
>00:47:09.667 - 1 is not a valid member of ReplicatedStorage

Then I use this script

for i = 1, #workspace:GetChildren() do
    print(workspace[i].Name)
end
--Output
>00:51:07.855 - 1 is not a valid member of Workspace

Please help,i am out of ideas. Thanks in advance!!! Got the answer from the Scripter Helper Chat room