DataStore Error (a boolean value)?

I'm making a DataStore that saves if a quest is complete or not by saving a Boolean value.

This is the error:

Workspace.LoadQuestScript:59: attempt to index local 'savedvalues' (a boolean value)

This is the script I am having trouble with:

wait(1)

local DataStore = game:GetService("DataStoreService"):GetDataStore("FolderStore")


game.Players.PlayerAdded:connect(function(player)
    local folder = Instance.new("Folder")
    folder.Parent = player
    folder.Name = "CompletedQuests"

    local quest1 = Instance.new("BoolValue")
    quest1.Parent = folder
    quest1.Name = "QUEST1"

    local quest2 = Instance.new("BoolValue")
    quest2.Parent = folder
    quest2.Name = "QUEST2"

    local quest3 = Instance.new("BoolValue")
    quest3.Parent = folder
    quest3.Name = "QUEST3"

    local quest4 = Instance.new("BoolValue")
    quest4.Parent = folder
    quest4.Name = "QUEST4"

    local quest5 = Instance.new("BoolValue")
    quest5.Parent = folder
    quest5.Name = "QUEST5"

    local quest6 = Instance.new("BoolValue")
    quest6.Parent = folder
    quest6.Name = "QUEST6"

    local quest7 = Instance.new("BoolValue")
    quest7.Parent = folder
    quest7.Name = "QUEST7"

    local quest8 = Instance.new("BoolValue")
    quest8.Parent = folder
    quest8.Name = "QUEST8"

    local quest9 = Instance.new("BoolValue")
    quest9.Parent = folder
    quest9.Name = "QUEST9"

    local quest10 = Instance.new("BoolValue")
    quest10.Parent = folder
    quest10.Name = "QUEST10"

    local key = "player-"..player.userId

print("Added "..key)

    local savedvalues = DataStore:GetAsync(key) --Error cause(?)

    if savedvalues then
        print("Saved")
	quest1.Value = savedvalues[1] --Error happens here.
        quest2.Value = savedvalues[2]
        quest3.Value = savedvalues[3]
        quest4.Value = savedvalues[4]
        quest5.Value = savedvalues[5]
        quest6.Value = savedvalues[6]
        quest7.Value = savedvalues[7]
        quest8.Value = savedvalues[8]
        quest9.Value = savedvalues[9]
        quest10.Value = savedvalues[10]
        print("Successfully loaded Data for "..key.."!")
    else
        print("Saving")
		local valuestosave = {quest1.Value, quest2.Value, quest3.Value, quest4.Value, quest5.Value, quest6.Value, quest7.Value, quest8.Value, quest9.Value, quest10.Value}
        DataStore:SetAsync(key, valuestosave)
        print("Couldn't find Data for "..key..". Making new Data...")
    end

end) 

Any help is appreciated. I have had a lot of problems with DataStores over the past 4 days.

Instead of doing each one, make a for loop:

-- you do not need quest1 variables etc.

for i,v in pairs (savedvalues) do
	local find = folder:FindFirstChild("QUEST"..i)
	if find then
		find.Value = v
	end
end

EDIT:

to make sure it doesn't fail

if savevalues[1] then
	-- code
else
	-- save
end

Sorry if it didn't fix your problem -_-

The error you're getting suggests that savedvalues was either true or false -- you probably accidentally saved one of the Quest values to it before.

You could try clearing out the data, or you could just more robustly check:

You want to reject nil, true, and false -- you expect a table if they had a value. You can use type to check this:

if type(savedvalues) == "table" then
	-- then there is data to load

You aren't ever saving data -- the only time you save is immediately when they join (which will be all falses).

You should save the data periodically / when they leave, for example, on PlayerRemoving:

function save(player)
	local quests = player.CompletedQuests
	local toSave = {}
	for i = 1, #quests:GetChildren() do
		toSave[i] = quests:FindFirstChild("quest" .. i).Value
	end
	local key = "player-"..player.userId
	DataStore:SetAsync(key, toSave)
end

game.Players.PlayerRemoving:connect(save)