Heroku push incomplete - ruby-on-rails

Question

I have a rails app that works perfectly in localhost, but last time I pushed it to Heroku the "About" and "Contact" sections seems like incomplete upload or something, here is the link to the website https://damp-inlet-9409.herokuapp.com, and yes, I re-pushed like 3 times and still the same result
Update:
I think the problem is from development.rb or production.rb, here you got them:
Production.rb
Rails.application.configure do
config.cache_classes = true
config.eager_load = true
config.consider_all_requests_local = false
config.action_controller.perform_caching = true
config.serve_static_files = ENV['RAILS_SERVE_STATIC_FILES'].present?
config.assets.js_compressor = :uglifier
config.assets.compile = true
config.assets.digest = true
config.log_level = :debug
config.i18n.fallbacks = true
config.active_support.deprecation = :notify
config.log_formatter = ::Logger::Formatter.new
config.active_record.dump_schema_after_migration = false
end
Development.rb
Rails.application.configure do
config.cache_classes = false
config.eager_load = false
config.consider_all_requests_local = true
config.action_controller.perform_caching = false
config.action_mailer.raise_delivery_errors = false
config.active_support.deprecation = :log
config.active_record.migration_error = :page_load
config.assets.debug = true
config.assets.digest = true
config.assets.raise_runtime_errors = true
end

Answer 1

There are several potentialities with your issue.
Firstly, you're getting a rails error, which means that at the base level (IE Heroku database etc), the app should be working okay.
The main problem for many Heroku apps is that they either don't have a database, which would yield the Heroku "Application Error":
For future reference, this error means that you have an issue with how Heroku is running your app (typically that you don't have a db or something).
Since you have a rails error, it means that the problem is likely an undeclared variable, or missing conditional login etc.
--
To fix the issue, you need to check the Heroku logs:
This will give you a specific readout of the problem that's preventing the app from running. You'll then either be better placed to give us the details of said error, or fix the problem yourself.