diff --git a/app/controllers/management/conferences_controller.rb b/app/controllers/management/conferences_controller.rb
index 1a68d9d..d7a198a 100644
--- a/app/controllers/management/conferences_controller.rb
+++ b/app/controllers/management/conferences_controller.rb
@@ -1,8 +1,5 @@
 module Management
   class ConferencesController < ManagementController
-    before_action :assign_conference, only: [:edit, :update, :show, :destroy, :open_call_for_papers, :close_call_for_papers]
-    before_action :assign_conferences, only: [:index, :destroy, :open_call_for_papers, :close_call_for_papers]
-
     def new
       @conference = Conference.new
       @conference.tracks.build(name: 'Track 1')
@@ -21,48 +18,36 @@ module Management
     end
 
     def update
+      @conference = find_conference
       @conference.update(conference_params)
       @conference.save
       render :edit
     end
 
     def edit
+      @conference = find_conference
     end
 
     def index
+      @conferences = Conference.all.order(start_date: :desc)
     end
 
     def show
+      @conference = find_conference
     end
 
     def destroy
+      @conference = find_conference
       @conference.destroy
+      set_current_conference(nil)
 
-      render 'reload_table'
-    end
-
-    def open_call_for_papers
-      @conference.call_for_papers_open = true
-      @conference.save
-
-      render 'reload_table'
-    end
-
-    def close_call_for_papers
-      @conference.call_for_papers_open = false
-      @conference.save
-
-      render 'reload_table'
+      redirect_to management_root_path
     end
 
     private
 
-    def assign_conference
-      @conference = Conference.find params[:id]
-    end
-
-    def assign_conferences
-      @conferences = Conference.all.order(start_date: :desc)
+    def find_conference
+      Conference.find(params[:id])
     end
 
     def conference_params
diff --git a/app/controllers/management/management_controller.rb b/app/controllers/management/management_controller.rb
index 2c66ed5..80f6bfa 100644
--- a/app/controllers/management/management_controller.rb
+++ b/app/controllers/management/management_controller.rb
@@ -7,17 +7,21 @@ module Management
     private
 
     def current_conference?
-      session[:current_conference_id] and current_conference.present?
+      current_conference.present?
     end
     helper_method :current_conference?
 
     def current_conference
-      @current_conference ||= Conference.find(session[:current_conference_id])
+      @current_conference ||= (session[:current_conference_id] and Conference.find_by(id: session[:current_conference_id]))
     end
     helper_method :current_conference
 
     def set_current_conference(conference)
-      session[:current_conference_id] = conference.id
+      if conference.present?
+        session[:current_conference_id] = conference.id
+      else
+        session.delete(:current_conference_id)
+      end
     end
 
     def authorize_user!
diff --git a/app/views/management/call_for_participations/_status.html.slim b/app/views/management/call_for_participations/_status.html.slim
index 17a109b..81263ef 100644
--- a/app/views/management/call_for_participations/_status.html.slim
+++ b/app/views/management/call_for_participations/_status.html.slim
@@ -1,7 +1,7 @@
 div id="cfp-status-#{conference.id}"
   - if conference.call_for_participation.in_progress?
-    = link_to management_conference_call_for_participation_path(conference), method: :delete, class: 'btn btn-sm btn-success cfp-toggle', remote: true
+    = link_to management_call_for_participation_path(conference), method: :delete, class: 'btn btn-sm btn-success cfp-toggle', remote: true
       = icon 'dot-circle-o', '', class: 'fa-fw'
   - else
-    = link_to management_conference_call_for_participation_path(conference), method: :post, class: 'btn btn-sm btn-warning cfp-toggle', remote: true
+    = link_to management_call_for_participation_path(conference), method: :post, class: 'btn btn-sm btn-warning cfp-toggle', remote: true
       = icon 'circle-o', class: 'fa-fw'
diff --git a/app/views/management/conferences/_conference.html.slim b/app/views/management/conferences/_conference.html.slim
index df99593..70974b8 100644
--- a/app/views/management/conferences/_conference.html.slim
+++ b/app/views/management/conferences/_conference.html.slim
@@ -12,5 +12,5 @@ tr
         = icon :eye
       = link_to edit_management_conference_path(conference), title: t('actions.edit.button', model: Conference.model_name.human), class: 'btn btn-primary'
         = icon :edit
-      = link_to management_conference_path(conference), title: t('actions.destroy.button', model: Conference.model_name.human), class: ['btn', 'btn-danger', conference.events.any? ? 'disabled' : nil], remote: true, method: :delete, data: {confirm: t('actions.are_you_sure')}
+      = link_to management_conference_path(conference), title: t('actions.destroy.button', model: Conference.model_name.human), class: ['btn', 'btn-danger', conference.events.any? ? 'disabled' : nil], method: :delete, data: {confirm: t('actions.are_you_sure')}
         = icon :trash
diff --git a/app/views/management/conferences/reload_table.js.erb b/app/views/management/conferences/reload_table.js.erb
deleted file mode 100644
index 64ae1b6..0000000
--- a/app/views/management/conferences/reload_table.js.erb
+++ /dev/null
@@ -1 +0,0 @@
-$('#conferences tbody').html('<%= j render @conferences %>');