Don't display layers

[lequynhhoa]

I deployed this project, I got errors:
jquery.min.js:4 GET http://localhost:8080/get_background 500 (Internal Server Error)

All layer water and boundary, can't not display. And google sdk get error when deployed:
ERROR 2018-09-14 07:13:52,994 webapp2.py:1552] Deadline exceeded while waiting for HTTP response from URL: https://earthengine.googleapis.com/api/mapid
Traceback (most recent call last):
File "C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1535, in call
rv = self.handle_exception(request, response, e)
File "C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1529, in call
rv = self.router.dispatch(request, response)
File "C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1278, in default_dispatcher

Could you tell me how to fix it? Thank you