The Badge API Endpoint is having issues right now (net::ERR_CONNECTION_RESET @ https://badges.roblox.com/), it is a matter of time until this gets resolved by Roblox Engineers.
This may also be happening to other API Endpoints, but I am not sure as of right now.
All I can suggest right now is wait and let the Roblox Engineers identify the issue and fix it.
EDIT 1: Same error happens with https://accountsettings.roblox.com/, while https://accountinformation.roblox.com/ throws a 404 making it impossible to edit account settings currently. It seems like this is a wide spread issue now which can/is affecting the entire platform and not just some parts of it.