error.rb

NoMethodError at /dealers
undefined method `[]' for nil:NilClass
file: main.rb location: block in <top (required)> line: 51

:attachments => {params[:file][:filename] => File.read(params[:file][:tempfile])},

main.rb

  Pony.mail({
    :to => 'gustavoanalytics@gmail.com',
    :subject => "DEALER " + params[:name] + " has contacted you via the Fusion Marketing website",
    :html_body =>
    "<br><br><strong>Package:</strong> #{params[:package]}" +
    "<br><br>Dealer Name: #{params[:name]}" +
    "<br><br>Dealer Email: #{params[:email]}" +
    "<br><br>Dealer Phone: #{params[:phone]}" +
    "<br><hr>" +
    "<br><br>Company Name: #{params[:company_name]}" +
    "<br><br>Company Phone: #{params[:company_phone]}" +
    "<br><br>Company Website: #{params[:company_website]}" +
    "<br><br>Company Address: #{params[:company_address]}" +
    "<br><br>Company Billing: #{params[:company_billing]}" +
    "<br><br>Company List cities/area you conduct business in: #{params[:company_business]}" +
    "<br><br>Company Colors: #{params[:company_colors]}" +
    "<br><br>Company Started: #{params[:company_year]}" +
    "<br><br>Company Target Audience: #{params[:company_target]}" +
    "<br><br>Company Acquisition Methods: #{params[:company_acquisition]}" +
    "<br><br>Company Slogan: #{params[:company_tag]}" +
    "<br><br>Company Testimonials: #{params[:company_testimonial]}" +
    "<br><hr>" +
    "<br><br>Company Distributor ID: #{params[:company_distributor]}" +
    "<br><br>Company P10 ID: #{params[:company_p10]}" +
    "<br><br>Company ViaSat ID: #{params[:company_viasat]}",
    :attachments => {params[:file][:filename] => File.read(params[:file][:tempfile])},
    :via => :smtp,
    :via_options => {
      :address              => 'smtp.gmail.com',
      :port                 => '587',
      :enable_starttls_auto => true,
    }
  })