David Kimura PRO said about 1 year ago on Deploying to Amazon Linux 2 :
  Do you have any kind of configurations for web_console? You may want to wrap those in a conditional block

unless Rails.env.production?

On one of your screenshots, it looks like it's getting referenced somewhere, but when beanstalk does the deployments, it's excluding the development and test gems. 

It also looks like at one point the bundler gem isn't installed when it's trying to do something. In the same place where you created the swap, also add a line for bundler.

    ignoreErrors: true
    test: test ! -f /swapfile
    command: dd if=/dev/zero of=/swapfile bs=1M count=4096 && mkswap /swapfile && swapon /swapfile
    ignoreErrors: true
    command: gem install bundler -v 2.2.16