No Images (Error 429)

I've tried reloading ImageManger, re-uploading the images to imgur and updating the links, hosting them somewhere besides imgur, just about everything I can think of and still no dice. The plugin functions perfectly in every other way but it's made meaningless by not being able to tell which emote(s) you're selecting without tabbing out and referencing the images on the plugin page here on codefling. Any input would be greatly appreciated.