Securing Electron Applications with OpenID Connect and OAuth2

Hi i tried using twitter with demo it was working fine but the moment my DEV account get verified and copy-paste my API key and Secret API Key, I started getting .catch error

(node:20797) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2)

[1] (node:20797) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.