(node:3464) UnhandledPromiseRejectionWarning: Error: connect ECONNREFUSED 127.0.0.1:8529
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1097:14)
(node:3464) 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: 1)
(node:3464) [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.`
how do i fix it