diff --git a/db/DbManager.py b/db/DbManager.py
index 7c6d16c..0ad66ff 100644
--- a/db/DbManager.py
+++ b/db/DbManager.py
@@ -62,8 +62,9 @@ class DataManager:
             doc_ref = self._db.collection(document_name).document(result.id)
             doc_ref.set(result.to_firestore_dict())
         else:
-            doc_ref = self._db.collection(ERROR_COLLECTION_NAME).document(result.phone)
-            doc_ref.set(result.to_firestore_dict())
+            if len(result.phone) > 0:
+                doc_ref = self._db.collection(ERROR_COLLECTION_NAME).document(result.phone)
+                doc_ref.set(result.to_firestore_dict())
 
     def save_timeout_contact(self, contact: ContactPojo):
         doc_ref = self._db.collection(TIMEOUT).document(str(contact.phone))