Attempt to index nil with 'LoadAnimation'

local plr = game.Players.LocalPlayer
local char = plr.Character or plr.CharacterAdded:Wait()
local hrp = char:WaitFirstChild("Humanoid")
local minerground = hum:LoadAnimation(game.ReplicatedStorage.MinerAnimations.MineGround)

I would recommend using the Animator instead of the Humanoid