fix sort error

app/controllers/seminars_controller.rb

@@ -7,9 +7,8 @@ class SeminarsController < ApplicationController
   def index
 
   	time_now = Time.now
-
-    seminars = SeminarMain.filter_by_categories.desc(:signup_start_date).page(OrbitHelper.params[:page_no]).per(OrbitHelper.page_data_count)
-
+    
+    seminars = SeminarMain.all.desc(:seminar_start_date).filter_by_categories
     {
       "seminars" => seminars,
       'time_now' => time_now,