fix error

app/controllers/announcements_controller.rb

@@ -407,6 +407,7 @@ class AnnouncementsController < ApplicationController
     @tab_option = 0
     @read_more_option = 0
     @all_setting_option = 0
+    @image_version = 'thumb'
     if subpart.methods.include? 'select_options'.to_sym
       ModuleApp.all.select{|tmp| tmp.key.to_s=='announcement'}.each do |modile_app|
         @show_options = modile_app.show_options rescue nil