Ruby on Rails

Hi, I'm not sure why my app on heroku is crashing.  

I've added a requests controller, and everything works locally using sqlite.  

here's my log from heroku...

2017-05-27T13:07:36.250694+00:00 app[web.1]:    [1m [35mUser Load (1.7ms) [0m  SELECT  "users".* FROM "users" WHERE "users"."id" = $1  ORDER BY "users"."id" ASC LIMIT 1  [["id", 11]]

2017-05-27T13:07:36.253544+00:00 app[web.1]: Completed 500 Internal Server Error in 8ms (ActiveRecord: 1.7ms)

2017-05-27T13:07:36.254583+00:00 app[web.1]: 

2017-05-27T13:07:36.254585+00:00 app[web.1]: NameError (uninitialized constant RequestsController::Request):

2017-05-27T13:07:36.254586+00:00 app[web.1]:   app/controllers/requests_controller.rb:12:in `index'

2017-05-27T13:07:36.254586+00:00 app[web.1]: 

What's causing this?  any suggestions?

Thanks,

Joe

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