Not able to identify Elements inside the Calendar iOS

[VTDuyen1]

Hi everybody!
I am having the problem when I open the calendar:

 Error: socket hang up
      at createHangUpError (_http_client.js:335:17)
      at Socket.socketOnEnd (_http_client.js:436:23)
      at Socket.emit (events.js:201:15)
![issue_calendar](https://user-images.githubusercontent.com/34959487/69112795-c3493500-0ab3-11ea-9d20-e865f9061ec8.jpeg)

      at endReadableNT (_stream_readable.js:1130:12)
      at processTicksAndRejections (internal/process/task_queues.js:84:17)

After that, app crash. How do I get an element when I open the calendar?