Why does Remote Function not seem to change value?

I recently made this script, it's basically a core for changing stats from local scripts. The game is Filtering Enabled. When invoked, it'll send over the value it wants to change and what the value is. But whenever valuename is "Health", "Strength", "Speed", "Kagune", "Quinque" it says it's a nil value, the error occured at line 10 i think. Even though there is a value in playerdata. It only seems to work when the valuename is "Playing"

local replicatedstorage = game.ReplicatedStorage
local remoteinstance = replicatedstorage:WaitForChild("RemoteInstance")
local gamedata = replicatedstorage:WaitForChild("GameData")
local remote = remoteinstance:WaitForChild("ChangeStat")

--Variables

function remote.OnServerInvoke(player, valuename, value)
    local playerdata = player:WaitForChild("BaseValue")
    if valuename == "Health" or "Strength" or "Speed" or "Kagune" or "Quinque" then
        if playerdata:FindFirstChild("SkillPoint").Value > 0 then
            if gamedata:WaitForChild(valuename).Value > playerdata:WaitForChild(valuename).Value then
        playerdata:FindFirstChild("SkillPoint").Value = playerdata:FindFirstChild("SkillPoint").Value - 1
        playerdata:FindFirstChild(valuename).Value = playerdata:FindFirstChild(valuename).Value + 1     
            else
print("Max Stats!")                     
            end
        end 
    end

    if valuename == "Playing" then
        playerdata:WaitForChild(valuename).Value = value
    else

        playerdata:WaitForChild(valuename).Value = value
end
    end