diff --git a/Gemfile.lock b/Gemfile.lock
index 983c917d8..1afb73bda 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -401,7 +401,7 @@ GEM
     mini_magick (4.12.0)
     mini_mime (1.1.2)
     mini_portile2 (2.8.4)
-    minitest (5.18.1)
+    minitest (5.20.0)
     msgpack (1.7.1)
     multi_json (1.15.0)
     multi_test (1.1.0)
@@ -673,7 +673,7 @@ GEM
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
     whacamole (1.2.0)
-    wicked_pdf (2.6.3)
+    wicked_pdf (2.7.0)
       activesupport
     xpath (3.2.0)
       nokogiri (~> 1.8)
diff --git a/app/assets/javascripts/global_activities/index.js b/app/assets/javascripts/global_activities/index.js
index aed7fbb93..eaf4b4f0d 100644
--- a/app/assets/javascripts/global_activities/index.js
+++ b/app/assets/javascripts/global_activities/index.js
@@ -21,7 +21,6 @@
       ev.preventDefault();
       animateSpinner(null, true);
       filters.page = moreButton.data('next-page');
-      filters.starting_timestamp = $('.ga-activities-list').data('starting-timestamp');
       $.ajax({
         url: $('.ga-activities-list').data('activities-url'),
         data: filters,
diff --git a/app/assets/javascripts/global_activities/side_pane.js b/app/assets/javascripts/global_activities/side_pane.js
index 72588e585..d741f6015 100644
--- a/app/assets/javascripts/global_activities/side_pane.js
+++ b/app/assets/javascripts/global_activities/side_pane.js
@@ -287,7 +287,6 @@ var globalActivities = (function() {
           } else {
             noActivitiesMessage.addClass('hidden');
           }
-          $('.ga-activities-list').data('starting-timestamp', json.starting_timestamp);
           updateRunning = false;
           animateSpinner('.ga-main', false);
 
diff --git a/app/controllers/global_activities_controller.rb b/app/controllers/global_activities_controller.rb
index 4d05101c1..04ca86781 100644
--- a/app/controllers/global_activities_controller.rb
+++ b/app/controllers/global_activities_controller.rb
@@ -49,14 +49,12 @@ class GlobalActivitiesController < ApplicationController
     end
 
     @next_page = activities.next_page
-    @starting_timestamp = activities.first&.created_at.to_i
 
     respond_to do |format|
       format.json do
         render json: {
           activities_html: render_to_string(partial: 'activity_list', formats: :html),
-          next_page: @next_page,
-          starting_timestamp: @starting_timestamp
+          next_page: @next_page
         }
       end
       format.html do
@@ -158,7 +156,7 @@ class GlobalActivitiesController < ApplicationController
 
   def activity_filters
     params.permit(
-      :page, :starting_timestamp, :from_date, :to_date, types: [], subjects: {}, users: [], teams: []
+      :page, :from_date, :to_date, types: [], subjects: {}, users: [], teams: []
     )
   end
 
diff --git a/app/controllers/my_modules_controller.rb b/app/controllers/my_modules_controller.rb
index 44a60494b..07a6b549a 100644
--- a/app/controllers/my_modules_controller.rb
+++ b/app/controllers/my_modules_controller.rb
@@ -123,7 +123,6 @@ class MyModulesController < ApplicationController
     end
 
     @next_page = activities.next_page
-    @starting_timestamp = activities.first&.created_at.to_i
 
     respond_to do |format|
       format.json do
@@ -132,8 +131,7 @@ class MyModulesController < ApplicationController
             partial: 'global_activities/activity_list',
             formats: :html
           ),
-          next_page: @next_page,
-          starting_timestamp: @starting_timestamp
+          next_page: @next_page
         }
       end
       format.html
@@ -562,7 +560,7 @@ class MyModulesController < ApplicationController
 
   def activity_filters
     params.permit(
-      :page, :starting_timestamp, :from_date, :to_date, types: [], users: [], subjects: {}
+      :page, :from_date, :to_date, types: [], users: [], subjects: {}
     )
   end
 
diff --git a/app/services/activities_service.rb b/app/services/activities_service.rb
index 3dbdf02c1..24e82d9c4 100644
--- a/app/services/activities_service.rb
+++ b/app/services/activities_service.rb
@@ -30,8 +30,6 @@ class ActivitiesService
     query = query.where(owner_id: filters[:users]) if filters[:users]
     query = query.where(type_of: filters[:types].map(&:to_i)) if filters[:types]
 
-    query = query.where('created_at <= ?', Time.at(filters[:starting_timestamp].to_i)) if filters[:starting_timestamp]
-
     activities =
       if filters[:from_date].present? && filters[:to_date].present?
         query.where('created_at <= :from AND created_at >= :to',
diff --git a/app/views/global_activities/index.html.erb b/app/views/global_activities/index.html.erb
index 546d67935..58c934da6 100644
--- a/app/views/global_activities/index.html.erb
+++ b/app/views/global_activities/index.html.erb
@@ -11,9 +11,7 @@
         <div class="no-activities-message text-center <%= 'hidden' if @grouped_activities.keys.any? %>">
           <p><%= t('activities.index.no_activities_message') %></p>
         </div>
-        <div class="ga-activities-list"
-             data-activities-url="<%= global_activities_path %>"
-             data-starting-timestamp="<%= @starting_timestamp %>">
+        <div class="ga-activities-list" data-activities-url="<%= global_activities_path %>">
           <%= render partial: "activity_list" %>
         </div>
         <div class="text-center">
diff --git a/app/views/my_modules/activities.html.erb b/app/views/my_modules/activities.html.erb
index 822979f45..82f30d1b4 100644
--- a/app/views/my_modules/activities.html.erb
+++ b/app/views/my_modules/activities.html.erb
@@ -27,9 +27,7 @@
             <div class="no-activities-message text-center <%= 'hidden' if @grouped_activities.keys.any? %>">
               <p><%= t('activities.index.no_activities_task_message') %></p>
             </div>
-            <div class="ga-activities-list"
-                data-activities-url="<%= activities_my_module_path(@my_module) %>"
-                data-starting-timestamp="<%= @starting_timestamp %>">
+            <div class="ga-activities-list" data-activities-url="<%= activities_my_module_path(@my_module) %>">
               <%= render partial: "global_activities/activity_list" %>
             </div>
             <div class="text-center">
diff --git a/config/initializers/wicked_pdf.rb b/config/initializers/wicked_pdf.rb
index 4b6c9295a..7b1a4a92d 100644
--- a/config/initializers/wicked_pdf.rb
+++ b/config/initializers/wicked_pdf.rb
@@ -5,4 +5,5 @@ WickedPdf.config ||= {}
 ENV['PATH'].split(':').each do |path|
   exe_path = File.join(path, 'wkhtmltopdf')
   WickedPdf.config[:exe_path] = File.join(path, 'wkhtmltopdf') if File.file?(exe_path)
+  WickedPdf.config[:allow] = Rails.public_path
 end