Ruby on Rails应用程序在Heroku上运行不正常

Question

当我昨天将我的应用程序推送到heroku时，它运行良好。但今天早上它开始行为不端。

两个问题

1. 我已经使用Carrierwave将图片上传到应用程序中，它在我的本地应用程序上运行良好，没有问题，在部署到heroku之后也工作得非常好，但几分钟之后，我得到404错误和图片没有加载。请参阅下面的控制台错误：



1. 我有一个来自Administrate和Devise的管理员进行身份验证。在本地应用程序上运行良好，并在部署后工作但是今天，当我进入管理端点并登录时，我无法退出并获得no route error。



将图像保存/上传为来自carrierwave的文件。

carrierwave image uploader / image_uploader.rb

# encoding: utf-8

class ImageUploader < CarrierWave::Uploader::Base

  # Include RMagick or MiniMagick support:
  # include CarrierWave::RMagick
  include CarrierWave::MiniMagick

  # Choose what kind of storage to use for this uploader:
  storage :file
  # storage :fog

  # Override the directory where uploaded files will be stored.
  # This is a sensible default for uploaders that are meant to be mounted:
  def store_dir
    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  end

  # Provide a default URL as a default if there hasn't been a file uploaded:
  # def default_url
  #   # For Rails 3.1+ asset pipeline compatibility:
  #   # ActionController::Base.helpers.asset_path("fallback/" + [version_name, "default.png"].compact.join('_'))
  #
  #   "/images/fallback/" + [version_name, "default.png"].compact.join('_')
  # end

  # Process files as they are uploaded:
  # process :scale => [200, 300]
  #
  # def scale(width, height)
  #   # do something
  # end

  # Create different versions of your uploaded files:
  version :thumb do
    process :resize_to_fit => [263, 263]
  end

  # Add a white list of extensions which are allowed to be uploaded.
  # For images you might use something like this:
  def extension_white_list
    %w(jpg jpeg gif png)
  end

  # Override the filename of the uploaded files:
  # Avoid using model.id or version_name here, see uploader/store.rb for details.
  # def filename
  #   "something.jpg" if original_filename
  # end

end

问题

  

为什么它有时会起作用，为什么它有时不起作用或者我做错了什么？

源代码

https://github.com/AfolabiOlaoluwa/LawVille

提前致谢。