CRUD initiaves doesn't work

[JeremyCoutellec]

Hello, I wanted to know what i did wrong on my decidim installation because when i want to create an initiative or an initiave type, it will redirect me to an 404 page.

I see on admin page the initiative button so i think that my gemfile is correct.

Here is my Gemfile

source "https://rubygems.org"

ruby RUBY_VERSION

gem "decidim", "0.21.0"
gem "decidim-assemblies", "~> 0.21"
gem 'decidim-pages', "~> 0.21"
gem "decidim-conferences", "~> 0.21"
gem "decidim-consultations", "~> 0.21"
gem "decidim-initiatives"

gem "decidim-dev", "0.21.0"

gem "bootsnap", "~> 1.3"

gem "puma", "~> 4.3.3"
gem "uglifier", "~> 4.1"

gem "faker", "~> 1.9"

gem "figaro"

group :development, :test do
  gem "byebug", "~> 11.0", platform: :mri

  gem "decidim-dev", "0.21.0"
end

group :development do
  gem "letter_opener_web", "~> 1.3"
  gem "listen", "~> 3.1"
  gem "spring", "~> 2.0"
  gem "spring-watcher-listen", "~> 2.0"
  gem "web-console", "~> 3.5"
end

group :production do
  gem "passenger"
  gem 'delayed_job_active_record'
  gem "daemons"
end

When i navigate on my decidim app folder, i see the page folder and the proposal folder on /public/assets/decidim folder but i don't see the initiatives folder.

Do you have any idee ? Thanks