diff --git a/app/modules/service/exporter_installation.py b/app/modules/service/exporter_installation.py
index 915e0ea7..690fe3d1 100644
--- a/app/modules/service/exporter_installation.py
+++ b/app/modules/service/exporter_installation.py
@@ -35,10 +35,9 @@ def haproxy_exp_installation():
         f" STATS_PASS='{stats_password}' HOST={serv} USER={ssh_settings['user']} PASS='{ssh_settings['password']}' KEY={ssh_settings['key']}"
     ]
 
-    output, error = server_mod.subprocess_execute(commands[0])
-
-    show_installation_output(error, output, 'HAProxy exporter')
+    return_out = server_mod.subprocess_execute_with_rc(commands[0])
 
+    show_installation_output(return_out['error'], return_out['output'], 'HAProxy exporter', rc=return_out['rc'])
     os.remove(script)
 
 
@@ -71,10 +70,9 @@ def nginx_apache_exp_installation():
         f" PASS='{ssh_settings['password']}' KEY={ssh_settings['key']}"
     ]
 
-    output, error = server_mod.subprocess_execute(commands[0])
-
-    show_installation_output(error, output, f'{service.title()} exporter')
+    return_out = server_mod.subprocess_execute_with_rc(commands[0])
 
+    show_installation_output(return_out['error'], return_out['output'], f'{service.title()} exporter', rc=return_out['rc'])
     os.remove(script)
 
 
@@ -97,8 +95,7 @@ def node_keepalived_exp_installation(service: str) -> None:
         f"HOST={serv} USER={ssh_settings['user']} PASS='{ssh_settings['password']}' KEY={ssh_settings['key']}"
     ]
 
-    output, error = server_mod.subprocess_execute(commands[0])
-
-    show_installation_output(error, output, 'Node exporter')
+    return_out = server_mod.subprocess_execute_with_rc(commands[0])
 
+    show_installation_output(return_out['error'], return_out['output'], 'Node exporter', rc=return_out['rc'])
     os.remove(script)
diff --git a/app/scripts/ansible/roles/keepalived/templates/add_vrrp.conf.j2 b/app/scripts/ansible/roles/keepalived/templates/add_vrrp.conf.j2
index ed1905de..2c0c8995 100644
--- a/app/scripts/ansible/roles/keepalived/templates/add_vrrp.conf.j2
+++ b/app/scripts/ansible/roles/keepalived/templates/add_vrrp.conf.j2
@@ -1,6 +1,6 @@
 vrrp_instance VI_{{IP}} {
 	state {{MASTER}}
-	interface {% if MASTER == 'MASTER' %}{{ETH}} {% else %} {{ETH_SLAVE}} {% endif %}
+	interface {% if MASTER == 'MASTER' %}{{ETH}} {% else %} {{SLAVE_ETH}} {% endif %}
 
 	virtual_router_id {{ router_id }}
 
diff --git a/app/scripts/ansible/roles/nginx.yml b/app/scripts/ansible/roles/nginx.yml
index 24474ea5..57b5954e 100644
--- a/app/scripts/ansible/roles/nginx.yml
+++ b/app/scripts/ansible/roles/nginx.yml
@@ -72,6 +72,7 @@
         group: "{{ ansible_user }}"
         state: directory
         recurse: yes
+        mode: 771
   tags:
     - system
     - docker
diff --git a/app/scripts/backup.sh b/app/scripts/backup.sh
index 795bb7cc..4759b2c1 100644
--- a/app/scripts/backup.sh
+++ b/app/scripts/backup.sh
@@ -42,6 +42,7 @@ ansible-playbook $PWD/roles/backup.yml --key-file $KEY -e "ansible_user=$USER va
 if [ $? -gt 0 ]
 then
         echo "error: Can't create backup job"
+        rm -f $PWD/$HOST
         exit 1
 fi
 rm -f $PWD/$HOST
\ No newline at end of file
diff --git a/app/scripts/install_apache.sh b/app/scripts/install_apache.sh
index 4c7c3560..ce937918 100644
--- a/app/scripts/install_apache.sh
+++ b/app/scripts/install_apache.sh
@@ -49,6 +49,7 @@ fi
 if [ $? -gt 0 ]
 then
     echo "error: Can't install Apache service <br /><br />"
+    rm -f $PWD/$HOST
     exit 1
 else
 	echo "ok"
diff --git a/app/scripts/install_apache_exporter.sh b/app/scripts/install_apache_exporter.sh
index e5881473..4f3feaff 100644
--- a/app/scripts/install_apache_exporter.sh
+++ b/app/scripts/install_apache_exporter.sh
@@ -40,6 +40,7 @@ fi
 if [ $? -gt 0 ]
 then
         echo "error: Can't install Apache exporter <br /><br />"
+        rm -f $PWD/$HOST
         exit 1
 fi
 
diff --git a/app/scripts/install_grafana.sh b/app/scripts/install_grafana.sh
index 0505d7a3..0f1cba70 100644
--- a/app/scripts/install_grafana.sh
+++ b/app/scripts/install_grafana.sh
@@ -40,7 +40,7 @@ ansible-playbook $PWD/roles/grafana.yml -e "PROXY=$PROXY"
 if [ $? -gt 0 ]
 then
 	echo "error: Can't install Grafana and Prometheus services <br /><br />"
-    exit 1
+  exit 1
 fi
 if ! sudo grep -Fxq "  - job_name: proxy" /etc/prometheus/prometheus.yml; then
 	sudo echo "  - job_name: proxy" | sudo tee -a /etc/prometheus/prometheus.yml > /dev/null
diff --git a/app/scripts/install_haproxy.sh b/app/scripts/install_haproxy.sh
index f655d789..d0d6bbb7 100644
--- a/app/scripts/install_haproxy.sh
+++ b/app/scripts/install_haproxy.sh
@@ -50,5 +50,8 @@ fi
 if [ $? -gt 0 ]
 then
         echo "error: Cannot install Haproxy service"
+        rm -f $PWD/$HOST
+        exit 1
 fi
+
 rm -f $PWD/$HOST
diff --git a/app/scripts/install_haproxy_geoip.sh b/app/scripts/install_haproxy_geoip.sh
index 438b41e6..d85203a4 100644
--- a/app/scripts/install_haproxy_geoip.sh
+++ b/app/scripts/install_haproxy_geoip.sh
@@ -30,6 +30,7 @@ echo "$HOST ansible_port=$SSH_PORT" > $PWD/$HOST
 
 if [[ $maxmind_key == "" ]]; then
   echo "error: the Maxmind key cannot be empty"
+  rm -f $PWD/$HOST
   exit 1
 fi
 
@@ -41,6 +42,8 @@ fi
 
 if [ $? -gt 0 ]
 then
-        echo "error: Cannot download GeoLite2 database"
+  echo "error: Cannot download GeoLite2 database"
+  rm -f $PWD/$HOST
+  exit 1
 fi
 rm -f $PWD/$HOST
diff --git a/app/scripts/install_keepalived.sh b/app/scripts/install_keepalived.sh
index 29b90b1e..8489aa99 100644
--- a/app/scripts/install_keepalived.sh
+++ b/app/scripts/install_keepalived.sh
@@ -21,8 +21,6 @@ do
             RETURN_TO_MASTER)    RETURN_TO_MASTER=${VALUE} ;;
             ADD_VRRP)     ADD_VRRP=${VALUE} ;;
             SSH_PORT)     SSH_PORT=${VALUE} ;;
-            HAPROXY)      HAPROXY=${VALUE} ;;
-            NGINX)        NGINX=${VALUE} ;;
             *)
     esac
 done
@@ -38,14 +36,15 @@ PWD=$PWD/scripts/ansible/
 echo "$HOST ansible_port=$SSH_PORT" > $PWD/$HOST
 
 if [[ $KEY == "" ]]; then
-	ansible-playbook $PWD/roles/keepalived.yml -e "ansible_user=$USER ansible_ssh_pass='$PASS' variable_host=$HOST SYN_FLOOD=$SYN_FLOOD PROXY=$PROXY MASTER=$MASTER ETH=$ETH ETH_SLAVE=$ETH_SLAVE keepalived_path_logs=$keepalived_path_logs IP=$IP RESTART=$RESTART RETURN_TO_MASTER=$RETURN_TO_MASTER ADD_VRRP=$ADD_VRRP router_id=$router_id HAPROXY=$HAPROXY NGINX=$NGINX SSH_PORT=$SSH_PORT" -i $PWD/$HOST
+	ansible-playbook $PWD/roles/keepalived.yml -e "ansible_user=$USER ansible_ssh_pass='$PASS' variable_host=$HOST SYN_FLOOD=$SYN_FLOOD PROXY=$PROXY MASTER=$MASTER ETH=$ETH ETH_SLAVE=$ETH_SLAVE keepalived_path_logs=$keepalived_path_logs IP=$IP RESTART=$RESTART RETURN_TO_MASTER=$RETURN_TO_MASTER ADD_VRRP=$ADD_VRRP router_id=$router_id SSH_PORT=$SSH_PORT" -i $PWD/$HOST
 else	
-	ansible-playbook $PWD/roles/keepalived.yml --key-file $KEY -e "ansible_user=$USER variable_host=$HOST SYN_FLOOD=$SYN_FLOOD PROXY=$PROXY MASTER=$MASTER ETH=$ETH ETH_SLAVE=$ETH_SLAVE keepalived_path_logs=$keepalived_path_logs IP=$IP RESTART=$RESTART RETURN_TO_MASTER=$RETURN_TO_MASTER ADD_VRRP=$ADD_VRRP router_id=$router_id HAPROXY=$HAPROXY NGINX=$NGINX SSH_PORT=$SSH_PORT" -i $PWD/$HOST
+	ansible-playbook $PWD/roles/keepalived.yml --key-file $KEY -e "ansible_user=$USER variable_host=$HOST SYN_FLOOD=$SYN_FLOOD PROXY=$PROXY MASTER=$MASTER ETH=$ETH ETH_SLAVE=$ETH_SLAVE keepalived_path_logs=$keepalived_path_logs IP=$IP RESTART=$RESTART RETURN_TO_MASTER=$RETURN_TO_MASTER ADD_VRRP=$ADD_VRRP router_id=$router_id SSH_PORT=$SSH_PORT" -i $PWD/$HOST
 fi
 
 if [ $? -gt 0 ]
 then
-        echo "error: Can't install keepalived service <br />"
-        exit 1
+  echo "error: Can't install keepalived service <br />"
+  rm -f $PWD/$HOST
+  exit 1
 fi
 rm -f $PWD/$HOST
\ No newline at end of file
diff --git a/app/scripts/install_keepalived_exporter.sh b/app/scripts/install_keepalived_exporter.sh
index 7453c968..f6e20670 100644
--- a/app/scripts/install_keepalived_exporter.sh
+++ b/app/scripts/install_keepalived_exporter.sh
@@ -35,8 +35,9 @@ fi
 
 if [ $? -gt 0 ]
 then
-        echo "error: Can't install Keepalived exporter <br /><br />"
-        exit 1
+  echo "error: Can't install Keepalived exporter <br /><br />"
+  rm -f $PWD/$HOST
+  exit 1
 fi
 if [ "$EXP_PROM" == 0 ]
 then
diff --git a/app/scripts/install_nginx.sh b/app/scripts/install_nginx.sh
index ebc86fec..e9970d2c 100644
--- a/app/scripts/install_nginx.sh
+++ b/app/scripts/install_nginx.sh
@@ -57,6 +57,7 @@ fi
 if [ $? -gt 0 ]
 then
     echo "error: Can't install NGINX service <br /><br />"
+    rm -f $PWD/$HOST
     exit 1
 else
 	echo "ok"
diff --git a/app/scripts/install_nginx_exporter.sh b/app/scripts/install_nginx_exporter.sh
index 3277112e..2b46b975 100644
--- a/app/scripts/install_nginx_exporter.sh
+++ b/app/scripts/install_nginx_exporter.sh
@@ -53,6 +53,7 @@ fi
 if [ $? -gt 0 ]
 then
         echo "error: Can't install Nginx exporter <br /><br />"
+        rm -f $PWD/$HOST
         exit 1
 fi
 
diff --git a/app/scripts/install_nginx_geoip.sh b/app/scripts/install_nginx_geoip.sh
index 3cf3859c..4fb251bb 100644
--- a/app/scripts/install_nginx_geoip.sh
+++ b/app/scripts/install_nginx_geoip.sh
@@ -30,6 +30,7 @@ echo "$HOST ansible_port=$SSH_PORT" > $PWD/$HOST
 
 if [[ $maxmind_key == "" ]]; then
   echo "error: the Maxmind key cannot be empty"
+  rm -f $PWD/$HOST
   exit 1
 fi
 
@@ -41,6 +42,8 @@ fi
 
 if [ $? -gt 0 ]
 then
-        echo "error: Cannot download GeoLite2 database"
+  echo "error: Cannot download GeoLite2 database"
+  rm -f $PWD/$HOST
+  exit 1
 fi
 rm -f $PWD/$HOST
diff --git a/app/scripts/install_node_exporter.sh b/app/scripts/install_node_exporter.sh
index a392463b..015bd1a9 100644
--- a/app/scripts/install_node_exporter.sh
+++ b/app/scripts/install_node_exporter.sh
@@ -35,8 +35,9 @@ fi
 
 if [ $? -gt 0 ]
 then
-        echo "error: Can't install Node exporter <br /><br />"
-        exit 1
+  echo "error: Can't install Node exporter <br /><br />"
+  rm -f $PWD/$HOST
+  exit 1
 fi
 if [ "$EXP_PROM" == 0 ]
 then
diff --git a/inc/ha.js b/inc/ha.js
index 887cbafd..b560125b 100644
--- a/inc/ha.js
+++ b/inc/ha.js
@@ -16,6 +16,9 @@ $( function() {
 					data = data.replace(/\s+/g,' ');
 					if (data.indexOf('error:') != '-1' || data.indexOf('Failed') != '-1') {
 						toastr.error(data);
+					} else if (data == '') {
+						var select_server = $('#translate').attr('data-select_server');
+						toastr.warning(select_server);
 					} else {
 						response(data.split(" "));
 					}
@@ -39,6 +42,9 @@ $( function() {
 					if (data.indexOf('error:') != '-1' || data.indexOf('Failed') != '-1') {
 						var p_err = show_pretty_ansible_error(data);
 						toastr.error(p_err);
+					} else if (data == '') {
+						var select_server = $('#translate').attr('data-select_server');
+						toastr.warning(select_server);
 					} else {
 						response(data.split(" "));
 					}
@@ -62,6 +68,9 @@ $( function() {
 					if (data.indexOf('error:') != '-1' || data.indexOf('Failed') != '-1') {
 						var p_err = show_pretty_ansible_error(data);
 						toastr.error(p_err);
+					} else if (data == '') {
+						var select_server = $('#translate').attr('data-select_server');
+						toastr.warning(select_server);
 					} else {
 						response(data.split(" "));
 					}
@@ -77,13 +86,16 @@ $( function() {
 				url: "options.py",
 				data: {
 					showif:1,
-					serv: $("#slave").val(),
+					serv: $("#slave-add").val(),
 					token: $('#token').val()
 				},
 				success: function( data ) {
 					data = data.replace(/\s+/g,' ');
 					if (data.indexOf('error:') != '-1' || data.indexOf('Failed') != '-1') {
 						toastr.error(data);
+					} else if (data == '') {
+						var select_server = $('#translate').attr('data-select_server');
+						toastr.warning(select_server);
 					} else {
 						response(data.split(" "));
 					}