diff --git a/check_process b/check_process
index 337be1f..e2909a8 100644
--- a/check_process
+++ b/check_process
@@ -3,7 +3,6 @@
 		domain="domain.tld"
 		path="/path"
 		admin="john"
-		language="fr"
 		is_public=1
 		password="1Strong-Password"
 	; Checks
diff --git a/manifest.json b/manifest.json
index 9239aac..febed46 100644
--- a/manifest.json
+++ b/manifest.json
@@ -26,8 +26,7 @@
     "multi_instance": true,
     "services": [
         "nginx",
-        "php7.3-fpm",
-        "mysql"
+        "php7.3-fpm"
     ],
     "arguments": {
         "install" : [
@@ -35,28 +34,10 @@
                 "name": "domain",
                 "type": "domain"
             },
-            {
-                "name": "admin",
-                "type": "user"
-            },
             {
                 "name": "is_public",
                 "type": "boolean",
                 "default": true
-            },
-            {
-                "name": "language",
-                "type": "string",
-                "ask": {
-                    "en": "Choose the application language",
-                    "fr": "Choisissez la langue de l'application"
-                },
-                "choices": ["cn", "cs", "de", "en", "fr", "lv", "nl", "ru", "tr", "tw"],
-                "default": "fr"
-            },
-            {
-                "name": "password",
-                "type": "password"
             }
         ]
     }
diff --git a/scripts/backup b/scripts/backup
index df218b0..9479c1b 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -31,7 +31,6 @@ app=$YNH_APP_INSTANCE_NAME
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
-datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 
 #=================================================
 # DECLARE DATA AND CONF FILES TO BACKUP
@@ -44,12 +43,6 @@ ynh_print_info --message="Declaring files to be backed up..."
 
 ynh_backup --src_path="$final_path"
 
-#=================================================
-# BACKUP THE DATA DIR
-#=================================================
-
-ynh_backup --src_path="$datadir" --is_big
-
 #=================================================
 # BACKUP THE NGINX CONFIGURATION
 #=================================================
diff --git a/scripts/install b/scripts/install
index d6c4468..50511ab 100755
--- a/scripts/install
+++ b/scripts/install
@@ -22,11 +22,7 @@ ynh_abort_if_errors
 
 domain=$YNH_APP_ARG_DOMAIN
 path_url="/"
-admin=$YNH_APP_ARG_ADMIN
 is_public=$YNH_APP_ARG_IS_PUBLIC
-language=$YNH_APP_ARG_LANGUAGE
-password=$YNH_APP_ARG_PASSWORD
-salt=$(ynh_string_random --length=24)
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -48,9 +44,6 @@ ynh_script_progression --message="Storing installation settings..." --weight=1
 
 ynh_app_setting_set --app=$app --key=domain --value=$domain
 ynh_app_setting_set --app=$app --key=path --value=$path_url
-ynh_app_setting_set --app=$app --key=admin --value=$admin
-ynh_app_setting_set --app=$app --key=language --value=$language
-ynh_app_setting_set --app=$app --key=salt --value=$salt
 
 #=================================================
 # INSTALL DEPENDENCIES
diff --git a/scripts/remove b/scripts/remove
index 9e2855f..26eefdc 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -17,7 +17,6 @@ ynh_script_progression --message="Loading installation settings..." --weight=1
 app=$YNH_APP_INSTANCE_NAME
 
 domain=$(ynh_app_setting_get --app=$app --key=domain)
-port=$(ynh_app_setting_get --app=$app --key=port)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index bac7e3e..6e4549e 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -64,19 +64,6 @@ chmod 750 "$final_path"
 chmod -R o-rwx "$final_path"
 chown -R $app:www-data "$final_path"
 
-#=================================================
-# RESTORE THE DATA DIRECTORY
-#=================================================
-ynh_script_progression --message="Restoring the data directory..." --weight=1
-
-ynh_restore_file --origin_path="$datadir" --not_mandatory
-
-mkdir -p $datadir
-
-chmod 750 "$datadir"
-chmod -R o-rwx "$datadir"
-chown -R $app:www-data "$datadir"
-
 #=================================================
 # RESTORE THE PHP-FPM CONFIGURATION
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index a9b3e6c..b50ede6 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -18,10 +18,7 @@ app=$YNH_APP_INSTANCE_NAME
 
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
-admin=$(ynh_app_setting_get --app=$app --key=admin)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
-language=$(ynh_app_setting_get --app=$app --key=language)
-salt=$(ynh_app_setting_get --app=$app --key=salt)
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 fpm_footprint=$(ynh_app_setting_get --app=$app --key=fpm_footprint)