exception

cat /etc/sensu/handlers/sensu-handler-input-example.json | /etc/sensu/handlers/twitter.rb

/opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/twitter-5.6.0/lib/twitter/rest/response/raise_error.rb:21:in `on_complete': You cannot send messages to users who are not following you. (Twitter::Error::Forbidden)
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/faraday-0.9.0/lib/faraday/response.rb:9:in `block in call'
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/faraday-0.9.0/lib/faraday/response.rb:57:in `on_complete'
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/faraday-0.9.0/lib/faraday/response.rb:8:in `call'
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/faraday-0.9.0/lib/faraday/request/url_encoded.rb:15:in `call'
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/faraday-0.9.0/lib/faraday/request/multipart.rb:14:in `call'
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/twitter-5.6.0/lib/twitter/rest/request/multipart_with_file.rb:18:in `call'
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/faraday-0.9.0/lib/faraday/rack_builder.rb:139:in `build_response'
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/faraday-0.9.0/lib/faraday/connection.rb:377:in `run_request'
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/faraday-0.9.0/lib/faraday/connection.rb:177:in `post'
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/twitter-5.6.0/lib/twitter/rest/client.rb:123:in `request'
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/twitter-5.6.0/lib/twitter/rest/client.rb:100:in `post'
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/twitter-5.6.0/lib/twitter/request.rb:22:in `perform'
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/twitter-5.6.0/lib/twitter/request.rb:29:in `perform_with_object'
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/twitter-5.6.0/lib/twitter/rest/api/utils.rb:40:in `perform_with_object'
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/twitter-5.6.0/lib/twitter/rest/api/direct_messages.rb:131:in `create_direct_message'
        from /etc/sensu/handlers/twitter.rb:93:in `block in handle'
        from /etc/sensu/handlers/twitter.rb:64:in `each'
        from /etc/sensu/handlers/twitter.rb:64:in `handle'
        from /opt/sensu/embedded/lib/ruby/gems/2.0.0/gems/sensu-plugin-0.2.2/lib/sensu-handler.rb:41:in `block in <class:Handler>'