diff --git a/app/controllers/zips_controller.rb b/app/controllers/zips_controller.rb
index b04ee3cb1..a8750fc3d 100644
--- a/app/controllers/zips_controller.rb
+++ b/app/controllers/zips_controller.rb
@@ -21,7 +21,6 @@ class ZipsController < ApplicationController
 
     file_name = filename_for_content_disposition(exercises.filename)
     send_file exercises.ex_zip, filename: file_name, type: 'application/zip'
-    Rails.logger.info("##################_______________________file_name___________1100101010010__________###########")
 
   rescue Exception => e
     normal_status(-1, e.message)
diff --git a/config/initializers/pdfkit.rb b/config/initializers/pdfkit.rb
index 0cd80c9c7..8bd9e5e38 100644
--- a/config/initializers/pdfkit.rb
+++ b/config/initializers/pdfkit.rb
@@ -1,6 +1,6 @@
 PDFKit.configure do |config|
-  config.wkhtmltopdf = ENV["WKHTMLTOPDF_EXEC"] || 'wkhtmltopdf'
-  # config.wkhtmltopdf = ENV["WKHTMLTOPDF_EXEC"] || '/usr/bin/wkhtmltopdf'
+  # config.wkhtmltopdf = ENV["WKHTMLTOPDF_EXEC"] || 'wkhtmltopdf'
+  config.wkhtmltopdf = ENV["WKHTMLTOPDF_EXEC"] || '/usr/bin/wkhtmltopdf'
   config.default_options = {
       encoding: "UTF-8",
       page_size: 'A4',