Help! plugins are broken!

read until end

Ok, so, basically, whenever I try to install a plugin, whether I install it from the toolbox, roblox.com website OR creator.roblox.com website, I always get this error:
image
PLEASE HELP!

I urgently need to install a plugin that I cannot finish my game without and if this error continues, I won’t be able to install the plugin hence I won’t be able to finish my game!!!

welp

Please, help me!

all help appreciated

welp again

I hope this works:

How to fix error code 429 in Roblox - Pro Games Guide

To fix Error Code 429 in Roblox, you must first determine why you get the error. Usually, when players encounter Error Code 429, their account makes too many requests. Sometimes accounts make too many requests because of browser extensions, so we recommend disabling any that you may have. If disabling browser extensions doesn’t remove Error Code 429, try other troubleshooting steps listed below: