Can't build site after installing jekyll-airtable_data

[kslstn]

Hey there, this seems super useful, but I can't get it to work properly. I installed the script by adding it to my Gemfile:

source 'https://rubygems.org'
group :jekyll_plugins do
  gem "jekyll-sitemap"
  gem "jekyll-paginate"
  gem 'jekyll-extlinks'
  gem 'jekyll_picture_tag'
  gem 'liquid_reading_time'
  gem 'jekyll-airtable_data'
end

gem 'sassc'
gem "jekyll"
gem "liquid-c"

After running bundle update and bundle install I can indeed pull in data with bundle exec jekyll airtable_data. Unfortunately, as long as the plugin is installed, I can't build my site. I get this error:

Liquid Exception: undefined method `cache_dir' for #<Jekyll::Site:0x00007fabdbafd460> in [path to my first blog post].

After removing the plugin, I can build my site again.