diff --git a/src-local/llo/new.js b/src-local/llo/new.js
index d483c25..5198b62 100644
--- a/src-local/llo/new.js
+++ b/src-local/llo/new.js
@@ -113,7 +113,14 @@ const { spawn, exec, execSync } = require('child_process')
 //const logout = fs.openSync('./logs/out.log', 'a');
 //const logerr = fs.openSync('./logs/out.log', 'a');
 
-const logerribuild = fs.openSync('./logs/build-out.log', 'a');
+
+try {
+  const logerribuild = fs.openSync('./logs/build-out.log', 'a');
+} catch (error) {
+      console.log('Error:', error);
+}
+
+
 
 //const watcher = chokidar.watch('./logs/build-out.log', { persistent: true });
 const Tail = require('nodejs-tail');
@@ -1439,8 +1446,20 @@ app.get('/rungui', (req, res, next) => {
                   
 			var buildoutdir = `${runpath}/logs/build-out.log`
 			var builderrdir = `${runpath}/logs/build-out.log`
+			//const buildout = fs.openSync(buildoutdir, 'a');
+			//const builderr = fs.openSync(builderrdir, 'a');
+try {
 			const buildout = fs.openSync(buildoutdir, 'a');
+} catch (error) {
+      console.log('Error:', error);
+}
+
+try {
 			const builderr = fs.openSync(builderrdir, 'a');
+} catch (error) {
+      console.log('Error:', error);
+}
+
 				 var buildimage = `echo "EXEC PID: $$"; ${showexec}`
 				 //var buildimage = `echo "EXEC PID: $$"; docker run  -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix  microservice-firefox /bin/sh -c "firefox"`
           const run_buildimage = spawn(buildimage, {
@@ -2037,7 +2056,11 @@ app.get('/create_config', (req, res, next) => {
 				RES.value    = req.query["value"]
         //console.log('value error '+JSON.stringify(RES.value))
         //var showexec = `cd ./hybrid; /bin/bash ./create-keys.sh`
+try {
         fs.writeFileSync('./hybrid/keys.json', JSON.stringify(RES.value));
+} catch (error) {
+      console.log('Error:', error);
+}
         RES.value = JSON.parse(RES.value); 
 
 var INTERFACE_IP=RES.value.wg_ip
@@ -2080,7 +2103,11 @@ var swarmlab_config_template = `
   ip rule add table main suppress_prefixlength 0
   ip rule show | grep -w "suppress_prefixlength"
 `
+try {
         fs.writeFileSync('./hybrid/connect/swarmlab-connect.sh', swarmlab_config_template);
+} catch (error) {
+      console.log('Error:', error);
+}
 
 var allowed_ips=RES.value.allowed_ips
 var swarmlab_public_wgkey=RES.value.swarmlab_public_wgkey
@@ -2098,7 +2125,11 @@ var swarmlab_wg0_template = `[Interface]
 
 `
         //fs.writeFileSync('./hybrid/connect/template-wg0.conf', swarmlab_wg0_template);
+try {
         fs.writeFileSync('./hybrid/connect/wg0.conf', swarmlab_wg0_template);
+} catch (error) {
+      console.log('Error:', error);
+}
 
 var swarmlab_swarm=RES.value.workerkey
 var swarmlab_swarm_ip=RES.value.swarm_ip
@@ -2106,7 +2137,11 @@ var swarmlab_swarm_template = `
   docker swarm join --token ${swarmlab_swarm}  ${swarmlab_swarm_ip}
 `
         //fs.writeFileSync('./hybrid/connect/template-swarm.sh', swarmlab_swarm_template);
+try {
         fs.writeFileSync('./hybrid/connect/reload-swarmlab.sh', swarmlab_swarm_template);
+} catch (error) {
+      console.log('Error:', error);
+}
 
 
 var swarmlab_swarm_join_template = `
@@ -2158,7 +2193,11 @@ fi
         /bin/bash ${mypath}/hybrid/connect/get-swarmlab-ca
         /bin/bash ${mypath}/hybrid/connect/get-base-ca
 `
+try {
         fs.writeFileSync('./hybrid/connect/join.sh', swarmlab_swarm_join_template);
+} catch (error) {
+      console.log('Error:', error);
+}
 
 var swarmlab_swarm_leave_template = `
 function hybrid_ifup() {
@@ -2185,7 +2224,11 @@ else
 fi
 `
 
+try {
         fs.writeFileSync('./hybrid/connect/leave.sh', swarmlab_swarm_leave_template);
+} catch (error) {
+      console.log('Error:', error);
+}
 
                       RES.error = false
                       RES.error_msg = "ok"
@@ -2359,7 +2402,11 @@ TEST=${service}
 `
          //console.log('value1 '+JSON.stringify(ENV_service_file_path))
          //console.log('value2 '+JSON.stringify(ENV_service_file))
+try {
 										fs.writeFileSync(ENV_service_file_path, ENV_service_file ,{encoding:'utf8',flag:'w'});
+} catch (error) {
+      console.log('Error:', error);
+}
 
 										 var service_up = '/bin/bash ../install/usr/share/swarmlab.io/sec/swarmlab-sec up size='+service_size
 
@@ -2418,7 +2465,11 @@ TEST=${service}
 							 var ENV_service_file = `
 SWARMLAB_STORAGE_PASSWORD=${service_password}
 `
+try {
 										fs.writeFileSync(ENV_service_file_path, ENV_service_file ,{encoding:'utf8',flag:'a'});
+} catch (error) {
+      console.log('Error:', error);
+}
 
 										 var service_up = '/bin/bash ./run.sh'
 
@@ -2472,7 +2523,11 @@ SWARMLAB_STORAGE_PASSWORD=${service_password}
 							 var ENV_service_file = `
 SWARMLAB_STORAGE_PASSWORD=${service_password}
 `
+try {
 										fs.writeFileSync(ENV_service_file_path, ENV_service_file ,{encoding:'utf8',flag:'a'});
+} catch (error) {
+      console.log('Error:', error);
+}
 
 										 var service_up = '/bin/bash ./run.sh'
 
@@ -2819,8 +2874,12 @@ SSH_PORT=
           //"homefile":"/home/zeus/VirtualBox VMs/ubuntu-/ubuntu-.vbox"
 
       mypath = `${mypath}/builders/bento-swarmlab/${image_dir}`
+try {
 			const buildout = fs.openSync(buildoutdir, 'a');
 			const builderr = fs.openSync(builderrdir, 'a');
+} catch (error) {
+      console.log('Error:', error);
+}
 
 				 var buildimage = `echo "EXEC PID: $$"; packer build -force -only=virtualbox-iso ${image_config}`
           const run_buildimage = spawn(buildimage, {
@@ -3081,7 +3140,11 @@ SSH_PORT=
         };
        
       let datajson = JSON.stringify(services_json);
+try {
       fs.writeFileSync(rawdatafile, datajson);
+} catch (error) {
+      console.log('Error:', error);
+}
 
          var services_path = ` ----------------
         create a file