Fixnum (NameError)

[Griogair]

Hello, I am a complete rookie when it comes to Ruby so apologies if this is an obvious fix. After installing all the dependencies I run the Ruby script but keep getting this message:

C:\Users\Griogair\Documents\Planning Portal Database>ruby my_scraper.rb
C:/Users/Griogair/.local/share/gem/ruby/3.2.0/gems/uk_planning_scraper-0.5.0/lib/uk_planning_scraper/authority_scrape_params.rb:15:in `validated_days': uninitialized constant UKPlanningScraper::Authority::Fixnum (NameError)

  check_class(n, Fixnum)
                 ^^^^^^
    from my_scraper.rb:7:in `block in <main>'
    from my_scraper.rb:6:in `each'
    from my_scraper.rb:6:in `<main>'

Would be very grateful if you could please explain why this is happening and make any suggestions on how to resolve the error.

Thank you,

Griogair