ERROR undefined method `namespace'

[recomp]

Hello! The deploy runs normally, the webhooks is sent. But with any action an error occurs:

/gems/ruby-2.4.2/gems/capistrano-hook-0.3.3/lib/capistrano/tasks/webhook.rake:12:in <top (required)>': undefined method namespace' for main:Object (NoMethodError)

ruby 2.4.2 rails 5.1.1
Capfile:

require 'capistrano/setup'
require 'capistrano/deploy'
require 'capistrano/rvm'
require 'capistrano/bundler'
require 'capistrano/rails'
require 'capistrano/rails/assets'
require "capistrano/scm/git"
require 'capistrano/hook'

Gemfile:

group :development do
gem 'capistrano'
gem 'capistrano-rails'
gem 'capistrano-bundler'
gem 'capistrano-rvm'
gem 'capistrano-hook'
end