fix

app/controllers/libraries_controller.rb

@@ -8,7 +8,7 @@ class LibrariesController < ApplicationController
     libraries = Library.where(nil)
 
     libraries =
-      if current_user.logged? && params[:type] == 'mine'
+      if User.current.logged? && params[:type] == 'mine'
         libraries.where(user_id: current_user.id).order('created_at desc')
       else
         libraries.where(status: :published).order('visited_count desc')