GUI element blinking when walking on a part?

Im trying to make it so when i stand on top of a part a text button is visible, and when i step off the part it becomes invisible, i tried this code (Server Script) and it kinda works but it blinks each time i move on the part, how can i make it so it doesnt blink? I also have a video of the issue so here is is, https://streamable.com/ypnkli

local Players = game.Players
     
local function Touched(hit)
    local player = Players:GetPlayerFromCharacter(hit.Parent)
    if player ~= nil then
        player.PlayerGui.ScreenGui.TextButton.Visible = true
    end
end
local function Away(hit)
    local player = Players:GetPlayerFromCharacter(hit.Parent)
    if player ~= nil then
        player.PlayerGui.ScreenGui.TextButton.Visible = false
    end    
end

script.Parent.Touched:Connect(Touched)
script.Parent.TouchEnded:Connect(Away)