Sentry was working just yesterday, and all of a sudden it stopped. Configs that work for others, do not work for me and give me a 420-Header Empty Error. Only a select few configs work for me (like perk.com). I have tried switching ips (4 locations) and reinstalling (2 times). I am attempting to use the walmart config, and i keep getting this error, when it is clearly working for many others. I have tried some other configs that i know are working for others, and i get the same error. If someone could please solve this, that would be great.