HTTP 429 (HTTP/1.1 429 Too Many Requests) ?

Hi, so I should first start off by saying that my game relies on Trello to pull and receive data. I limit and rate this, and I've never had this 'Too Many Requests' issue until today. I am using the Trello API module, that I'm sure most people use for sending requests to Trello.

Here's the code:

-- Trello
local Trello = require(script.TrelloAPI)

print("Establishing connection to: Trello")
wait(1)
local Board = Trello:GetBoardID("Renegade Administrative Database") -- HTTP error is here.
warn("Established connection to: "..Board)

local Blacklist = Trello:GetListID("Blacklisted",Board)
local Moderators = Trello:GetListID("Moderators List",Board)
local Administrators = Trello:GetListID("Administrators",Board)
local Developers = Trello:GetListID("Developers List",Board)

Line 6 triggers this issue. I've tried waiting up to an hour, and every time I run the script, I have this issue.