How to fix Gui giving information to different location?

So, This was made originally for StarterGuis but I wanted to change it to a giver, so I tried tweaking with it myself but ended up not finding a solution. Anyone got an idea on what to do?

Here's the script that gives the information

while true do
    for _, Workspace in pairs(game.Players:GetChildren()) do
        local BossBattleHealthGui = Workspace.GuiGiver.Input:FindFirstChild("BossBattleHealthGui")
        if BossBattleHealthGui then
            BossBattleHealthGui.Frame.Boss.Value = script.Parent.Parent
        end
    end
    wait()
end