Update archives_controller.rb

try

app/controllers/archives_controller.rb

@@ -7,6 +7,7 @@ class ArchivesController < ApplicationController
 	    if !params['title'].nil?
 	        files_by_cateogry = ArchiveFile.where(is_hidden: false).group_by(&:category)
 	        categories = files_by_cateogry.keys
+	        puts categories
 	        cats_last = []
 	        categories.each do |category|
     			url_to_edit = ""