root@kl:~/wpscan# wpscan
Traceback (most recent call last):
	8: from /usr/local/bin/wpscan:23:in `<main>'
	7: from /usr/local/lib/site_ruby/2.5.0/rubygems.rb:303:in `activate_bin_path'
	6: from /usr/local/lib/site_ruby/2.5.0/rubygems.rb:303:in `synchronize'
	5: from /usr/local/lib/site_ruby/2.5.0/rubygems.rb:304:in `block in activate_bin_path'
	4: from /usr/local/lib/site_ruby/2.5.0/rubygems/specification.rb:1422:in `activate'
	3: from /usr/local/lib/site_ruby/2.5.0/rubygems/specification.rb:1440:in `activate_dependencies'
	2: from /usr/local/lib/site_ruby/2.5.0/rubygems/specification.rb:1440:in `each'
	1: from /usr/local/lib/site_ruby/2.5.0/rubygems/specification.rb:1451:in `block in activate_dependencies'
/usr/local/lib/site_ruby/2.5.0/rubygems/dependency.rb:311:in `to_specs': Could not find 'cms_scanner' (~> 0.0.41.2) among 122 total gem(s) (Gem::MissingSpecError)
Checked in 'GEM_PATH=/root/.gem/ruby/2.5.0:/var/lib/gems/2.5.0:/usr/lib/x86_64-linux-gnu/rubygems-integration/2.5.0:/usr/share/rubygems-integration/2.5.0:/usr/share/rubygems-integration/all', execute `gem env` for more information