/usr/local/rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/open-uri.rb:346:in `open_http': 500 Error Interno del Servidor (OpenURI::HTTPError)
from /usr/local/rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/open-uri.rb:769:in `buffer_open'
from /usr/local/rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/open-uri.rb:203:in `block in open_loop'
from /usr/local/rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/open-uri.rb:201:in `catch'
from /usr/local/rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/open-uri.rb:201:in `open_loop'
from /usr/local/rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/open-uri.rb:146:in `open_uri'
from /usr/local/rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/open-uri.rb:671:in `open'
from /usr/local/rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/open-uri.rb:33:in `open'
from /repo/scraper.rb:27:in `<main>'