Ionic-angular app automatically logout when handling

Hello! I am facing to a really big problem that tried me :rage:. After creating my app it 's automatically log out and blocked when I am handling it. After checking the log within android studio I encounter this error: - Line 5381 - Msg: WebSocket connection to ‘ws://’ failed: Error in connection establishment: net::ERR_CONNECTION_TIMED_OUT.
File: - Line 6322 - Msg: [webpack-dev-server].
It 's looking like I am using websocket to communicate with the server but I am only doing HTTP request. Please HELP ME