Buenas.

A mi me pasa lo mismo. intento acceder con mis credenciales del foro y me indica:
Oops....No puede ser que no tengas usuario en el Foro

Buenas tardes.

Al intentar instalar dradis, me da un error al ejecutar:
bundle install

"Installing nokogumbo 2.0.1 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    current directory: /root/dradis-ce/ruby/2.5.0/gems/nokogumbo-2.0.1/ext/nokogumbo
/usr/bin/ruby2.5 -r ./siteconf20191128-9903-1efd285.rb extconf.rb
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
   --with-opt-dir
   --without-opt-dir
   --with-opt-include
   --without-opt-include=${opt-dir}/include
   --with-opt-lib
   --without-opt-lib=${opt-dir}/lib
   --with-make-prog
   --without-make-prog
   --srcdir=.
   --curdir
   --ruby=/usr/bin/$(RUBY_BASE_NAME)2.5
/usr/lib/ruby/2.5.0/rubygems/dependency.rb:312:in `to_specs': Could not find 'nokogiri' (= 1.10.4) - did find: [nokogiri-1.10.5]
(Gem::MissingSpecVersionError)
Checked in 'GEM_PATH=/root/dradis-ce/ruby/2.5.0', execute `gem env` for more information
   from /usr/lib/ruby/2.5.0/rubygems/dependency.rb:322:in `to_spec'
   from /usr/lib/ruby/2.5.0/rubygems/specification.rb:1055:in `find_by_name'
   from extconf.rb:9:in `<main>'

extconf failed, exit code 1

Gem files will remain installed in /root/dradis-ce/ruby/2.5.0/gems/nokogumbo-2.0.1 for inspection.
Results logged to /root/dradis-ce/ruby/2.5.0/extensions/x86_64-linux/2.5.0/nokogumbo-2.0.1/gem_make.out

An error occurred while installing nokogumbo (2.0.1), and Bundler cannot continue.
Make sure that `gem install nokogumbo -v '2.0.1' --source 'You are not allowed to view links. You are not allowed to view links. Register or Login or You are not allowed to view links. Register or Login succeeds before bundling.

In Gemfile:
  sanitize was resolved to 5.0.0, which depends on
    nokogumbo"


¿alguien puede ayudarme?

Muchas gracias