Tileify error app crash

gistfile1.txt

2017-06-27T18:07:50.126163+00:00 heroku[router]: at=error code=H12 desc="Request timeout" method=GET path="/tiles/18/60464/104479?url=https%3A%2F%2Fwww.fws.gov%2Fwetlands%2Farcgis%2Frest%2Fservices%2FWetlands%2FMapServer&transparent=true&layers=show%3A0" host=tileify-trc-nwi.herokuapp.com request_id=162eab1f-0e93-4264-bf72-1a2f0aa1a72a fwd="70.215.192.226" dyno=web.1 connect=0ms service=30000ms status=503 bytes=0 protocol=http
2017-06-27T18:07:50.164050+00:00 app[web.1]: events.js:160
2017-06-27T18:07:50.164065+00:00 app[web.1]:       throw er; // Unhandled 'error' event
2017-06-27T18:07:50.164066+00:00 app[web.1]:       ^
2017-06-27T18:07:50.164067+00:00 app[web.1]: 
2017-06-27T18:07:50.164067+00:00 app[web.1]: Error: socket hang up
2017-06-27T18:07:50.164068+00:00 app[web.1]:     at createHangUpError (_http_client.js:253:15)
2017-06-27T18:07:50.164069+00:00 app[web.1]:     at TLSSocket.socketOnEnd (_http_client.js:345:23)
2017-06-27T18:07:50.164069+00:00 app[web.1]:     at emitNone (events.js:91:20)
2017-06-27T18:07:50.164070+00:00 app[web.1]:     at TLSSocket.emit (events.js:185:7)
2017-06-27T18:07:50.164070+00:00 app[web.1]:     at endReadableNT (_stream_readable.js:974:12)
2017-06-27T18:07:50.164072+00:00 app[web.1]:     at _combinedTickCallback (internal/process/next_tick.js:80:11)
2017-06-27T18:07:50.164073+00:00 app[web.1]:     at process._tickCallback (internal/process/next_tick.js:104:9)
2017-06-27T18:07:50.192297+00:00 app[web.1]: 
2017-06-27T18:07:50.209517+00:00 app[web.1]: npm ERR! Linux 3.13.0-112-generic
2017-06-27T18:07:50.209808+00:00 app[web.1]: npm ERR! argv "/app/.heroku/node/bin/node" "/app/.heroku/node/bin/npm" "start"
2017-06-27T18:07:50.214065+00:00 app[web.1]: npm ERR! node v6.11.0
2017-06-27T18:07:50.214245+00:00 app[web.1]: npm ERR! npm  v3.10.10
2017-06-27T18:07:50.214431+00:00 app[web.1]: npm ERR! code ELIFECYCLE
2017-06-27T18:07:50.214577+00:00 app[web.1]: npm ERR! tileify-ags-proxy@0.0.1 start: `node index.js`
2017-06-27T18:07:50.214709+00:00 app[web.1]: npm ERR! Exit status 1
2017-06-27T18:07:50.214848+00:00 app[web.1]: npm ERR! 
2017-06-27T18:07:50.214987+00:00 app[web.1]: npm ERR! Failed at the tileify-ags-proxy@0.0.1 start script 'node index.js'.
2017-06-27T18:07:50.215117+00:00 app[web.1]: npm ERR! Make sure you have the latest version of node.js and npm installed.
2017-06-27T18:07:50.215242+00:00 app[web.1]: npm ERR! If you do, this is most likely a problem with the tileify-ags-proxy package,
2017-06-27T18:07:50.215369+00:00 app[web.1]: npm ERR! not with npm itself.
2017-06-27T18:07:50.215503+00:00 app[web.1]: npm ERR! Tell the author that this fails on your system:
2017-06-27T18:07:50.215630+00:00 app[web.1]: npm ERR!     node index.js
2017-06-27T18:07:50.215911+00:00 app[web.1]: npm ERR! You can get information on how to open an issue for this project with:
2017-06-27T18:07:50.216059+00:00 app[web.1]: npm ERR!     npm bugs tileify-ags-proxy
2017-06-27T18:07:50.216178+00:00 app[web.1]: npm ERR! Or if that isn't available, you can get their info via:
2017-06-27T18:07:50.216310+00:00 app[web.1]: npm ERR!     npm owner ls tileify-ags-proxy
2017-06-27T18:07:50.216438+00:00 app[web.1]: npm ERR! There is likely additional logging output above.
2017-06-27T18:07:50.229282+00:00 app[web.1]: 
2017-06-27T18:07:50.238287+00:00 app[web.1]: npm ERR! Please include the following file with any support request:
2017-06-27T18:07:50.238479+00:00 app[web.1]: npm ERR!     /app/npm-debug.log
2017-06-27T18:07:50.174851+00:00 heroku[router]: at=error code=H13 desc="Connection closed without response" method=GET path="/tiles/18/60466/104478?url=https%3A%2F%2Fwww.fws.gov%2Fwetlands%2Farcgis%2Frest%2Fservices%2FWetlands%2FMapServer&transparent=true&layers=show%3A0" host=tileify-trc-nwi.herokuapp.com request_id=dbd05aa8-6a2f-41a3-b557-6f7ede598cea fwd="70.215.192.226" dyno=web.1 connect=0ms service=12667ms status=503 bytes=0 protocol=http
2017-06-27T18:07:50.176655+00:00 heroku[router]: at=error code=H13 desc="Connection closed without response" method=GET path="/tiles/18/60466/104477?url=https%3A%2F%2Fwww.fws.gov%2Fwetlands%2Farcgis%2Frest%2Fservices%2FWetlands%2FMapServer&transparent=true&layers=show%3A0" host=tileify-trc-nwi.herokuapp.com request_id=3cb0da87-5c19-4f97-a9ab-d52f5927025d fwd="70.215.192.226" dyno=web.1 connect=1ms service=12565ms status=503 bytes=0 protocol=http
2017-06-27T18:07:50.180350+00:00 heroku[router]: at=error code=H13 desc="Connection closed without response" method=GET path="/tiles/18/60465/104478?url=https%3A%2F%2Fwww.fws.gov%2Fwetlands%2Farcgis%2Frest%2Fservices%2FWetlands%2FMapServer&transparent=true&layers=show%3A0" host=tileify-trc-nwi.herokuapp.com request_id=96f99add-9716-4f22-9c61-42931d88e290 fwd="70.215.192.226" dyno=web.1 connect=0ms service=12681ms status=503 bytes=0 protocol=http
2017-06-27T18:07:50.174443+00:00 heroku[router]: at=error code=H13 desc="Connection closed without response" method=GET path="/tiles/18/60465/104477?url=https%3A%2F%2Fwww.fws.gov%2Fwetlands%2Farcgis%2Frest%2Fservices%2FWetlands%2FMapServer&transparent=true&layers=show%3A0" host=tileify-trc-nwi.herokuapp.com request_id=f0f8e2c5-6bde-44b3-a039-8fac338ee5be fwd="70.215.192.226" dyno=web.1 connect=0ms service=12560ms status=503 bytes=0 protocol=http
2017-06-27T18:07:50.385948+00:00 heroku[web.1]: State changed from up to crashed
2017-06-27T18:07:50.372965+00:00 heroku[web.1]: Process exited with status 1
2017-06-27T18:07:50.787816+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/tiles/18/60464/104478?url=https%3A%2F%2Fwww.fws.gov%2Fwetlands%2Farcgis%2Frest%2Fservices%2FWetlands%2FMapServer&transparent=true&layers=show%3A0" host=tileify-trc-nwi.herokuapp.com request_id=6b881f4b-a827-491b-9d6c-e6949474e039 fwd="70.215.192.226" dyno= connect= service= status=503 bytes= protocol=http