diff --git a/app/controllers/admin/site_panel_controller.rb b/app/controllers/admin/site_panel_controller.rb
index bd642cc..330a6d9 100644
--- a/app/controllers/admin/site_panel_controller.rb
+++ b/app/controllers/admin/site_panel_controller.rb
@@ -146,7 +146,7 @@ class Admin::SitePanelController < OrbitAdminController
     elsif params[:type] == 'detect_sites'
       extra_text = ""
       if params[:key].present?
-        extra_text = "[#{params[:key].gsub(/[\(\)\[\]]/){|ff| "\\"+ff }}]"
+        extra_text = "['#{params[:key].gsub(/[\(\)\[\]]/){|ff| "\\"+ff }}']"
       end
       Thread.new do
         system("bundle exec rake create_site:detect_sites#{extra_text}")
diff --git a/lib/tasks/change_site_cert.rake b/lib/tasks/change_site_cert.rake
index e8e64e1..4255e7e 100644
--- a/lib/tasks/change_site_cert.rake
+++ b/lib/tasks/change_site_cert.rake
@@ -155,7 +155,7 @@ namespace :create_site do
     if output.include?("sudo:") && output.include?("command not found")
       output = session.exec!(command)
     end
-    return output
+    return output.encode!("UTF-8", :invalid => :replace, :undef => :replace, :replace => '')
   end
   def auto_update_infos(info)
     if @is_multithread
diff --git a/lib/tasks/change_site_server_name.rake b/lib/tasks/change_site_server_name.rake
index e1a92b9..98b96ac 100644
--- a/lib/tasks/change_site_server_name.rake
+++ b/lib/tasks/change_site_server_name.rake
@@ -46,6 +46,6 @@ namespace :create_site do
     if output.include?("sudo:") && output.include?("command not found")
       output = session.exec!(command)
     end
-    return output
+    return output.encode!("UTF-8", :invalid => :replace, :undef => :replace, :replace => '')
   end
 end
\ No newline at end of file
diff --git a/lib/tasks/copy_site.rake b/lib/tasks/copy_site.rake
index ca817db..508578c 100644
--- a/lib/tasks/copy_site.rake
+++ b/lib/tasks/copy_site.rake
@@ -136,7 +136,7 @@ namespace :create_site do
     if output.include?("sudo:") && output.include?("command not found")
       output = session.exec!(command)
     end
-    return output
+    return output.encode!("UTF-8", :invalid => :replace, :undef => :replace, :replace => '')
   end
   def update_thread_infos_for_exec(info,update_last=false)
     if update_last
diff --git a/lib/tasks/create_site.rake b/lib/tasks/create_site.rake
index 5d49ae5..f1e78b1 100644
--- a/lib/tasks/create_site.rake
+++ b/lib/tasks/create_site.rake
@@ -88,7 +88,7 @@ namespace :create_site do
     if output.include?("sudo:") && output.include?("command not found")
       output = session.exec!(command)
     end
-    return output
+    return output.encode!("UTF-8", :invalid => :replace, :undef => :replace, :replace => '')
   end
   def update_thread_infos_for_exec(info,update_last=false)
     if update_last
diff --git a/lib/tasks/delete_dbs.rake b/lib/tasks/delete_dbs.rake
index 3152aa9..473bd0c 100644
--- a/lib/tasks/delete_dbs.rake
+++ b/lib/tasks/delete_dbs.rake
@@ -32,7 +32,7 @@ namespace :create_site do
     if output.include?("sudo:") && output.include?("command not found")
       output = session.exec!(command)
     end
-    return output
+    return output.encode!("UTF-8", :invalid => :replace, :undef => :replace, :replace => '')
   end
   def update_infos(info)
     puts info
diff --git a/lib/tasks/detect_sites.rake b/lib/tasks/detect_sites.rake
index 75ec0b0..bee5ca3 100644
--- a/lib/tasks/detect_sites.rake
+++ b/lib/tasks/detect_sites.rake
@@ -171,7 +171,7 @@ namespace :create_site do
     if output.include?("sudo:") && output.include?("command not found")
       output = session.exec!(command)
     end
-    return output
+    return output.encode!("UTF-8", :invalid => :replace, :undef => :replace, :replace => '')
   end
   def update_thread_infos(info)
     puts info
diff --git a/lib/tasks/exec_command.rake b/lib/tasks/exec_command.rake
index efb899c..b95c9e0 100644
--- a/lib/tasks/exec_command.rake
+++ b/lib/tasks/exec_command.rake
@@ -154,7 +154,7 @@ namespace :exec_commands do
     if output.include?("sudo:") && output.include?("command not found")
       output = session.exec!(command)
     end
-    return output
+    return output.encode!("UTF-8", :invalid => :replace, :undef => :replace, :replace => '')
   end
   def update_infos_for_exec(info,update_last=false,update_array=false)
     return if @site_construct.nil?
diff --git a/lib/tasks/test_vpn.rake b/lib/tasks/test_vpn.rake
index 3ae8e74..5632886 100644
--- a/lib/tasks/test_vpn.rake
+++ b/lib/tasks/test_vpn.rake
@@ -37,7 +37,7 @@ namespace :create_site do
     if output.include?("sudo:") && output.include?("command not found")
       output = session.exec!(command)
     end
-    return output
+    return output.encode!("UTF-8", :invalid => :replace, :undef => :replace, :replace => '')
   end
   def update_thread_infos(info)
     puts info
diff --git a/lib/tasks/update_multiple_nginx_setting.rake b/lib/tasks/update_multiple_nginx_setting.rake
index 6bac19b..3b20187 100644
--- a/lib/tasks/update_multiple_nginx_setting.rake
+++ b/lib/tasks/update_multiple_nginx_setting.rake
@@ -57,7 +57,7 @@ namespace :create_site do
     if output.include?("sudo:") && output.include?("command not found")
       output = session.exec!(command)
     end
-    return output
+    return output.encode!("UTF-8", :invalid => :replace, :undef => :replace, :replace => '')
   end
   def update_thread_infos(info)
     puts info