Sinatra: route doesn't route when deployed to Heroku -

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In my app.rb:

route '/' Okay, I can see all the categories on the page (so my app has all the necessary information in the TechBomagCategory table). 

  get '/' do_categories = Category.all erb: categories end   
 and then  
  category all. Each do | Category | Get '/' + Category.title do erb: End of end products   
 do not make the necessary route. When I go to any  '/' + category.title  page, then 404 pages arrive. 
 Note that everything works as expected on my local machine, all pages are presented perfectly properly.  
 What went wrong, how should I fix it?   
 
 
 this simple  
  hrooku restart   
 Helps I think the route was unusable because this my  categories  table was not yet ranked.

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