diff --git a/src/appointment.js b/src/appointment.js
index 3d6635e..c9f393b 100644
--- a/src/appointment.js
+++ b/src/appointment.js
@@ -22,7 +22,7 @@ async function filterAlreadyBookedContacts(contactList) {
 }
 
 async function filterBlacklistedContacts(contactList) {
-    let blackListedContacts = await mongoManager.getAllBlackedListItems(collectionName);
+    let blackListedContacts = await mongoManager.getAllBlackedListItems();
     let contactsToBook = [];
     contactList.forEach((contact) => {
         let blackListedItem = blackListedContacts.find((bookedContact) => bookedContact.email === contact.mail)
@@ -130,7 +130,7 @@ async function startBookWithNumbers(startNumber, endNumber, selectedStore, pathT
                                 return
                             }
                             let segmentNumber = listToBook.length / devices.length;
-                            console.log("connected device number:" + listToBook.length)
+                            console.log("connected device number:" + devices.length)
                             console.log("segmentNumber:" + segmentNumber)
                             for (let i = 0; i < devices.length; i++) {
                                 startWithList(listToBook.slice(i * segmentNumber, segmentNumber * (i + 1)), devices[i], selectedStore, audioAnalyse, alertBeep);