Data Stores return an HTTP Error?

I've been encountering a problem while using Data Stores, and it's been bugging me for awhile now. Whenever I call :GetAsync(), it always returns with a 21:12:32.561 - 502: API Services rejected request with error: HTTP 0 (HTTP 403 (HTTP/1.1 403 Forbidden))

I've used DataStores before, and I'm actually baffled to see this happen, as I've never encountered this error.

For reference, this is a portion of the code. As mentioned before, I get an error each time I call GetAsync.

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

function loaddata(player)
    local key = "plrchts_"..player.userId
    local tosave = {}
    local data = DataStore:GetAsync(key)
    if data ~= nil then
        tosave = data
    end
end

EXTRA NOTES:

• The place I'm testing in uses Team Create.
• API services are enabled.

If anyone can figure out what this means, it would be very much appreciated!