diff --git a/src/createContacts.js b/src/createContacts.js
index 0834c1b..4e1face 100644
--- a/src/createContacts.js
+++ b/src/createContacts.js
@@ -6,9 +6,8 @@ async function createHubspotContacts(leadContact) {
         properties: {
             firstname: leadContact.firstname,
             lastname: leadContact.lastname,
-            email: leadContact.contact.email,
-            phone: leadContact.contact.phone,
-            lead_source: 'Keystone'
+            email: leadContact.contact?.email || '',
+            phone: leadContact.contact?.phone || ''
         }
     }
 
@@ -29,7 +28,8 @@ async function createHubspotContacts(leadContact) {
         return creationContact;
     }
     catch (error) {
-        console.log('Error in creating the contacts.');
+        console.error('Dettaglio Errore 400 HubSpot:', JSON.stringify(error.response?.data, null, 2) || error.message);
+        return null;
     }
 }
 
diff --git a/src/fetchLeads.js b/src/fetchLeads.js
index fbd8458..38d8046 100644
--- a/src/fetchLeads.js
+++ b/src/fetchLeads.js
@@ -19,7 +19,7 @@ async function getLeads() {
             console.log('File not found.');
             const defaultDate = new Date();
             defaultDate.setDate(defaultDate.getDate() - 7);
-            lastRunDate = defaultDate.toISOString().split('T')[0];
+            lastRunDate = defaultDate.toISOString().split('T')[0];  
         }
 
         const response = await fetch('https://smarthub.keystoneacademic.com/api/rest/getLead', {
diff --git a/src/hubspotConnector.js b/src/hubspotConnector.js
index b20de77..0bbad5d 100644
--- a/src/hubspotConnector.js
+++ b/src/hubspotConnector.js
@@ -19,11 +19,9 @@ async function initializeHubspotConnection() {
     hubspot.setClientSecret(auth.hClientSecret);
     hubspot.setRedirectUri(auth.hCallback);
 
-    if (!await hubspot.getAccessToken()) {
-        console.log('No token found.')
-    }
-    else {
-        console.log('Token loaded successfully');
+    const currentToken = await hubspot.getAccessToken();
+    if (!currentToken) {
+        throw new Error('Refresh token not found in cfg/hubspot.json. Complete the authentication OAuth first via browser.');
     }
 
     await hubspot.checkToken();
@@ -67,9 +65,9 @@ async function runConnector() {
             console.log('Creation successful!');
 
             // here we save the last time we ran the connector
-            const currentDateTime = new Date().toISOString().split('T')[0];
-            fs.writeFileSync(FILE_PATH, JSON.stringify({ lastRun: currentDateTime }, null, 2));
-            console.log('DateTime saved successfully in file last-modified-date.json');
+            //const currentDateTime = new Date().toISOString().split('T')[0];
+            //fs.writeFileSync(FILE_PATH, JSON.stringify({ lastRun: currentDateTime }, null, 2));
+            //console.log('DateTime saved successfully in file last-modified-date.json');  
             
             console.log('All contacts have been created!');
         }