diff --git a/app/controllers/admins/projects_rank_controller.rb b/app/controllers/admins/projects_rank_controller.rb
index 8db0961b..9e7df34f 100644
--- a/app/controllers/admins/projects_rank_controller.rb
+++ b/app/controllers/admins/projects_rank_controller.rb
@@ -10,7 +10,7 @@ class Admins::ProjectsRankController < Admins::BaseController
                                                          sum(issues) as issues,
                                                          sum(pullrequests) as pullrequests,
                                                          sum(commits) as commits").includes(:project)
-    @statistics = @statistics.order("#{sort_by} #{sort_direction}")
+    @statistics = paginate @statistics.order("#{sort_by} #{sort_direction}")
     export_excel(@statistics.limit(50))
   end
 
diff --git a/app/jobs/cache_async_clear_job.rb b/app/jobs/cache_async_clear_job.rb
index 1d810781..589876bc 100644
--- a/app/jobs/cache_async_clear_job.rb
+++ b/app/jobs/cache_async_clear_job.rb
@@ -2,6 +2,7 @@ class CacheAsyncClearJob < ApplicationJob
   queue_as :cache
 
   def perform(type, id=nil)
+    return if id.nil?
     case type 
     when "project_common_service"
       Cache::V2::ProjectCommonService.new(id).clear
diff --git a/app/models/project.rb b/app/models/project.rb
index c5fb448a..de57d88e 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -181,14 +181,14 @@ class Project < ApplicationRecord
     end
     if changes[:is_public].present?
       if changes[:is_public][0] && !changes[:is_public][1]
-        CacheAsyncClearJob.perform_later('project_rank_service', self.id)
+        CacheAsyncClearJob.set(wait: 5.seconds).perform_later('project_rank_service', self.id)
       end
       if !changes[:is_public][0] && changes[:is_public][1]
         $redis_cache.srem("v2-project-rank-deleted", self.id)
       end
     end
     if !self.common?
-      CacheAsyncClearJob.perform_later('project_rank_service', self.id)
+      CacheAsyncClearJob.set(wait: 5.seconds).perform_later('project_rank_service', self.id)
     end
   end
 
diff --git a/app/views/admins/projects_rank/shared/_data_list.html.erb b/app/views/admins/projects_rank/shared/_data_list.html.erb
index e95cfdef..1437a27c 100644
--- a/app/views/admins/projects_rank/shared/_data_list.html.erb
+++ b/app/views/admins/projects_rank/shared/_data_list.html.erb
@@ -34,4 +34,6 @@
         </tr>
       <% end %>
     </tbody>
-  </table>
\ No newline at end of file
+  </table>
+
+  <%= render partial: 'admins/shared/paginate', locals: { objects: statistics } %>
\ No newline at end of file