small fix for page render

app/controllers/pages_controller.rb

@@ -317,7 +317,9 @@ class PagesController < ApplicationController
       @part_partials.each do |key, partial|
         html_string = ""
         partial.each do |p|
-          html_string = html_string + p
+          if !p.nil?
+            html_string = html_string + p
+          end
         end
         pp = doc.css("*[#{key}]")
         if !pp.blank?

app/helpers/application_helper.rb

@@ -22,7 +22,7 @@ module ApplicationHelper
 		header = Nokogiri::HTML(header_file_html, nil, "UTF-8")
 		sub_menu_html = site.sub_menu
 		html = header.to_s
-		html = html.gsub("{{site_name}}",site.title)
+		html = html.gsub("{{site_name}}",(site.title rescue ""))
 		html = html.gsub("%7B%7Blogo_url%7D%7D",(site.site_logo.url.nil? ? "/assets/site-logo.png" : site.site_logo.url))
 		if site.sitemap_menu_in_header
 			sub_menu_html = sub_menu_html + "<a href='/#{I18n.locale.to_s}#{site.site_map_link}'>Sitemap</a>"