ruby - Need help deploying a sinatra app to heroku using data mapper, no tables getting created -

I'm trying to deploy a small app for it. The deployment of work is fine, and it runs without a problem in my local environment, however, crashes immediately after throwing an "application error" in the production in the app.

I suspect that the problem is that no database tables are being created (when I see statistics on hekura / sql tables: 0). I do not know why code requires

  'Sinatra' requires 'haml' 'data_mapper' is required "date" is required "postgraduate" category GitHub  
 from my app.rb file is on the snapshot Note: DataMaper :: resource includes the property: ID, serial property: content, text,: = required; True estate: location, integer property: created_at DATETIME, property: updated_at DATETIME, finally configure DataMapper.setup (: default, ENV [ 'postgres: // coeastaxltnwlx: JnO2uo9HyracxQQ86n49u-FlzE@ec2-54-204-40-96.compute -1.amazonaws.com:5432/d7n7n4iggsqnke '] || "sqlite3: // # {Dir.pwd} /development.db") Detamaprkfinlaijhkoto_apgred! End  

and from the gem file

  source "https://rubygems.org" ruby ​​"2.1.2" gem "sin" gem " thin "gem" haml "gem 'data_mapper' gem" PG "gem" dm-postgres- adapter " 

over the error message here I get $ Heroku log

  2014-10-27T10: 55: 48.5 9 1707 + 00: 00 Heroku [web.1]: Exited with the status of the process 1 2014-10-27T10: 55: 48.600652 + 00: 00 Heroku [web.1]: Changing from state start to crash 2014-10-27T10: 55: 55.6 9 770 + 00: 00 Heroku [router]: on = tru Procedure Code = H 10 desc = "application crashed" method = path = "/" host = Brbra- waters- 2400.herokuapp.com REQUEST_ID = 1a3e9d90-c9f2-4cdc-842b-55d3152089ba FWD = "83.64.207.92" dyno = connect = Service = status = 503 bytes = 2014-10-27T10: 55: 56.508412 + 00: 00 Heroku [router]: on = error code = H10 desc = "app crashes" method = gate path = "/ favicon.ico "host = murmuring -waters-2400.herokuapp.com request_id = d83bdf15-c09c-4919-ab05-30b862199323 fwd =" 83.64.207.92 "witch = connect = Service = status = 503 bytes = 2014-10-2 7T10 : 56: 06.872347 + 00: 00 Heroko [Router]: AR = Error code = H10Did = "app crash" method = GET path = "/" host = murmur-water -2 400.Herokup dot request _id = 2e4a1984-c1ea -4234-8331-3f6a6f217137 fwd = "54.161.222.26" dyno = connect = service = condition = 503 bytes =  

Any help is greatly appreciated!