Blank White Screen With Error in Terminal

[a7med-hussien]

Got This Warning in terminal and app doesn't work !

(electron) The default value of app.allowRendererProcessReuse is deprecated, it is currently "false".  It will change to be "true" in Electron 9.  For more information please check https://github.com/electron/electron/issues/18397
Error: connect ECONNREFUSED 127.0.0.1:2892
    at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1128:14) {
  errno: 'ECONNREFUSED',
  code: 'ECONNREFUSED',
  syscall: 'connect',
  address: '127.0.0.1',
  port: 2892
}